Il Giava per ciclo viene utilizzato per ripetere più volte una parte del programma. Se il numero di iterazioni è fisso , si consiglia di utilizzare il ciclo for.

Esistono tre tipi di cicli for in Java.

• Semplice per Loop
• Per ciascuno o Avanzato per Loop
• Etichettato per Loop

Java semplice per Loop

Un semplice ciclo for è uguale a C / C++ . Possiamo inizializzare il file variabile , controllare la condizione e incrementare/diminuire il valore. Si compone di quattro parti:

Inizializzazione: È la condizione iniziale che viene eseguita una volta all'avvio del ciclo. Qui possiamo inizializzare la variabile oppure possiamo utilizzare una variabile già inizializzata. È una condizione facoltativa.Condizione: È la seconda condizione che viene eseguita ogni volta per testare la condizione del ciclo. Continua l'esecuzione finché la condizione non diventa falsa. Deve restituire un valore booleano true o false. È una condizione facoltativa.Incremento/Decremento: Incrementa o decrementa il valore della variabile. È una condizione facoltativa.Dichiarazione: L'istruzione del ciclo viene eseguita ogni volta finché la seconda condizione non è falsa.

Sintassi:

 for(initialization; condition; increment/decrement){ //statement or code to be executed } 

Diagramma di flusso:

Esempio:

Ad esempio.java

 //Java Program to demonstrate the example of for loop //which prints table of 1 public class ForExample { public static void main(String[] args) { //Code of Java for loop for(int i=1;i<=10;i++){ system.out.println(i); } < pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> 1 2 3 4 5 6 7 8 9 10 </pre> <h2>Java Nested for Loop</h2> <p>If we have a for loop inside the another loop, it is known as nested for loop. The inner loop executes completely whenever outer loop executes.</p> <p> <strong>Example:</strong> </p> <p> <strong>NestedForExample.java</strong> </p> <pre> public class NestedForExample { public static void main(String[] args) { //loop of i for(int i=1;i<=3;i++){ loop of j for(int system.out.println(i+' '+j); } end i < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 2 2 2 3 3 1 3 2 3 3 </pre> <p> <strong>Pyramid Example 1:</strong> </p> <p> <strong>PyramidExample.java</strong> </p> <pre> public class PyramidExample { public static void main(String[] args) { for(int i=1;i<=5;i++){ for(int j="1;j&lt;=i;j++){" system.out.print('* '); } system.out.println(); new line < pre> <p> <strong>Output:</strong> </p> <pre> * * * * * * * * * * * * * * * </pre> <p> <strong>Pyramid Example 2:</strong> </p> <p> <strong>PyramidExample2.java</strong> </p> <pre> public class PyramidExample2 { public static void main(String[] args) { int term=6; for(int i=1;i=i;j--){ System.out.print(&apos;* &apos;); } System.out.println();//new line } } } </pre> <p> <strong>Output:</strong> </p> <pre> * * * * * * * * * * * * * * * * * * * * * </pre> <h2>Java for-each Loop</h2> <p>The for-each loop is used to traverse array or collection in Java. It is easier to use than simple for loop because we don&apos;t need to increment value and use subscript notation.</p> <p>It works on the basis of elements and not the index. It returns element one by one in the defined variable.</p> <p> <strong>Syntax:</strong> </p> <pre> for(data_type variable : array_name){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForEachExample.java</strong> </p> <pre> //Java For-each loop example which prints the //elements of the array public class ForEachExample { public static void main(String[] args) { //Declaring an array int arr[]={12,23,44,56,78}; //Printing array using for-each loop for(int i:arr){ System.out.println(i); } } } </pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> 12 23 44 56 78 </pre> <h2>Java Labeled For Loop</h2> <p>We can have a name of each Java for loop. To do so, we use label before the for loop. It is useful while using the nested for loop as we can break/continue specific for loop.</p> <h4>Note: The break and continue keywords breaks or continues the innermost for loop respectively.</h4> <p> <strong>Syntax:</strong> </p> <pre> labelname: for(initialization; condition; increment/decrement){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>LabeledForExample.java</strong> </p> <pre> //A Java program to demonstrate the use of labeled for loop public class LabeledForExample { public static void main(String[] args) { //Using Label for outer and for loop aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break aa; } system.out.println(i+' '+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 </pre> <p>If you use <strong>break bb;</strong> , it will break inner loop only which is the default behaviour of any loop.</p> <p> <strong>LabeledForExample2.java</strong> </p> <pre> public class LabeledForExample2 { public static void main(String[] args) { aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break bb; } system.out.println(i+' '+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 3 1 3 2 3 3 </pre> <h2>Java Infinitive for Loop</h2> <p>If you use two semicolons ;; in the for loop, it will be infinitive for loop.</p> <p> <strong>Syntax:</strong> </p> <pre> for(;;){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForExample.java</strong> </p> <pre> //Java program to demonstrate the use of infinite for loop //which prints an statement public class ForExample { public static void main(String[] args) { //Using no condition in for loop for(;;){ System.out.println(&apos;infinitive loop&apos;); } } } </pre> <p> <strong>Output:</strong> </p> <pre> infinitive loop infinitive loop infinitive loop infinitive loop infinitive loop ctrl+c </pre> <p>Now, you need to press ctrl+c to exit from the program.</p> <h2>Java for Loop vs while Loop vs do-while Loop</h2> <table class="table"> <tr> <th>Comparison</th> <th>for loop</th> <th>while loop</th> <th>do-while loop</th> </tr> <tr> <td>Introduction</td> <td>The Java for loop is a control flow statement that iterates a part of the <a href="/java-programs-java-programming-examples">programs</a> multiple times. </td> <td>The Java while loop is a control flow statement that executes a part of the programs repeatedly on the basis of given boolean condition.</td> <td>The Java do while loop is a control flow statement that executes a part of the programs at least once and the further execution depends upon the given boolean condition.</td> </tr> <tr> <td>When to use</td> <td>If the number of iteration is fixed, it is recommended to use for loop.</td> <td>If the number of iteration is not fixed, it is recommended to use while loop.</td> <td>If the number of iteration is not fixed and you must have to execute the loop at least once, it is recommended to use the do-while loop.</td> </tr> <tr> <td>Syntax</td> <td>for(init;condition;incr/decr){ <br> // code to be executed <br> } </td> <td> while(condition){ <br> //code to be executed <br> } </td> <td> do{ <br> //code to be executed <br> }while(condition); </td> </tr> <tr> <td>Example</td> <td> //for loop <br> for(int i=1;i<=10;i++){ <br> System.out.println(i); <br> } </=10;i++){></td> <td> //while loop <br> int i=1; <br> while(i<=10){ <br> System.out.println(i); <br> i++; <br> } </=10){></td> <td> //do-while loop <br> int i=1; <br> do{ <br> System.out.println(i); <br> i++; <br> }while(i<=10); < td> </=10);></td></tr> <tr> <td>Syntax for infinitive loop</td> <td> for(;;){ <br> //code to be executed <br> }</td> <td> while(true){ <br> //code to be executed <br> }</td> <td> do{ <br> //code to be executed <br> }while(true); </td> </tr> </table> <hr></=3;i++){></pre></=3;i++){></pre></=5;i++){></pre></=3;i++){></pre></=10;i++){>

Java nidificato per loop

Se abbiamo un ciclo for all'interno di un altro ciclo, è noto come ciclo for nidificato. Il ciclo interno viene eseguito completamente ogni volta che viene eseguito il ciclo esterno.

Esempio:

bash per il ciclo

NestedForExample.java

 public class NestedForExample { public static void main(String[] args) { //loop of i for(int i=1;i<=3;i++){ loop of j for(int system.out.println(i+\' \'+j); } end i < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 2 2 2 3 3 1 3 2 3 3 </pre> <p> <strong>Pyramid Example 1:</strong> </p> <p> <strong>PyramidExample.java</strong> </p> <pre> public class PyramidExample { public static void main(String[] args) { for(int i=1;i<=5;i++){ for(int j="1;j&lt;=i;j++){" system.out.print(\'* \'); } system.out.println(); new line < pre> <p> <strong>Output:</strong> </p> <pre> * * * * * * * * * * * * * * * </pre> <p> <strong>Pyramid Example 2:</strong> </p> <p> <strong>PyramidExample2.java</strong> </p> <pre> public class PyramidExample2 { public static void main(String[] args) { int term=6; for(int i=1;i=i;j--){ System.out.print(&apos;* &apos;); } System.out.println();//new line } } } </pre> <p> <strong>Output:</strong> </p> <pre> * * * * * * * * * * * * * * * * * * * * * </pre> <h2>Java for-each Loop</h2> <p>The for-each loop is used to traverse array or collection in Java. It is easier to use than simple for loop because we don&apos;t need to increment value and use subscript notation.</p> <p>It works on the basis of elements and not the index. It returns element one by one in the defined variable.</p> <p> <strong>Syntax:</strong> </p> <pre> for(data_type variable : array_name){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForEachExample.java</strong> </p> <pre> //Java For-each loop example which prints the //elements of the array public class ForEachExample { public static void main(String[] args) { //Declaring an array int arr[]={12,23,44,56,78}; //Printing array using for-each loop for(int i:arr){ System.out.println(i); } } } </pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> 12 23 44 56 78 </pre> <h2>Java Labeled For Loop</h2> <p>We can have a name of each Java for loop. To do so, we use label before the for loop. It is useful while using the nested for loop as we can break/continue specific for loop.</p> <h4>Note: The break and continue keywords breaks or continues the innermost for loop respectively.</h4> <p> <strong>Syntax:</strong> </p> <pre> labelname: for(initialization; condition; increment/decrement){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>LabeledForExample.java</strong> </p> <pre> //A Java program to demonstrate the use of labeled for loop public class LabeledForExample { public static void main(String[] args) { //Using Label for outer and for loop aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break aa; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 </pre> <p>If you use <strong>break bb;</strong> , it will break inner loop only which is the default behaviour of any loop.</p> <p> <strong>LabeledForExample2.java</strong> </p> <pre> public class LabeledForExample2 { public static void main(String[] args) { aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break bb; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 3 1 3 2 3 3 </pre> <h2>Java Infinitive for Loop</h2> <p>If you use two semicolons ;; in the for loop, it will be infinitive for loop.</p> <p> <strong>Syntax:</strong> </p> <pre> for(;;){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForExample.java</strong> </p> <pre> //Java program to demonstrate the use of infinite for loop //which prints an statement public class ForExample { public static void main(String[] args) { //Using no condition in for loop for(;;){ System.out.println(&apos;infinitive loop&apos;); } } } </pre> <p> <strong>Output:</strong> </p> <pre> infinitive loop infinitive loop infinitive loop infinitive loop infinitive loop ctrl+c </pre> <p>Now, you need to press ctrl+c to exit from the program.</p> <h2>Java for Loop vs while Loop vs do-while Loop</h2> <table class="table"> <tr> <th>Comparison</th> <th>for loop</th> <th>while loop</th> <th>do-while loop</th> </tr> <tr> <td>Introduction</td> <td>The Java for loop is a control flow statement that iterates a part of the <a href="/java-programs-java-programming-examples">programs</a> multiple times. </td> <td>The Java while loop is a control flow statement that executes a part of the programs repeatedly on the basis of given boolean condition.</td> <td>The Java do while loop is a control flow statement that executes a part of the programs at least once and the further execution depends upon the given boolean condition.</td> </tr> <tr> <td>When to use</td> <td>If the number of iteration is fixed, it is recommended to use for loop.</td> <td>If the number of iteration is not fixed, it is recommended to use while loop.</td> <td>If the number of iteration is not fixed and you must have to execute the loop at least once, it is recommended to use the do-while loop.</td> </tr> <tr> <td>Syntax</td> <td>for(init;condition;incr/decr){ <br> // code to be executed <br> } </td> <td> while(condition){ <br> //code to be executed <br> } </td> <td> do{ <br> //code to be executed <br> }while(condition); </td> </tr> <tr> <td>Example</td> <td> //for loop <br> for(int i=1;i<=10;i++){ <br> System.out.println(i); <br> } </=10;i++){></td> <td> //while loop <br> int i=1; <br> while(i<=10){ <br> System.out.println(i); <br> i++; <br> } </=10){></td> <td> //do-while loop <br> int i=1; <br> do{ <br> System.out.println(i); <br> i++; <br> }while(i<=10); < td> </=10);></td></tr> <tr> <td>Syntax for infinitive loop</td> <td> for(;;){ <br> //code to be executed <br> }</td> <td> while(true){ <br> //code to be executed <br> }</td> <td> do{ <br> //code to be executed <br> }while(true); </td> </tr> </table> <hr></=3;i++){></pre></=3;i++){></pre></=5;i++){></pre></=3;i++){>

Piramide Esempio 1:

PyramidExample.java

 public class PyramidExample { public static void main(String[] args) { for(int i=1;i<=5;i++){ for(int j="1;j&lt;=i;j++){" system.out.print(\'* \'); } system.out.println(); new line < pre> <p> <strong>Output:</strong> </p> <pre> * * * * * * * * * * * * * * * </pre> <p> <strong>Pyramid Example 2:</strong> </p> <p> <strong>PyramidExample2.java</strong> </p> <pre> public class PyramidExample2 { public static void main(String[] args) { int term=6; for(int i=1;i=i;j--){ System.out.print(&apos;* &apos;); } System.out.println();//new line } } } </pre> <p> <strong>Output:</strong> </p> <pre> * * * * * * * * * * * * * * * * * * * * * </pre> <h2>Java for-each Loop</h2> <p>The for-each loop is used to traverse array or collection in Java. It is easier to use than simple for loop because we don&apos;t need to increment value and use subscript notation.</p> <p>It works on the basis of elements and not the index. It returns element one by one in the defined variable.</p> <p> <strong>Syntax:</strong> </p> <pre> for(data_type variable : array_name){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForEachExample.java</strong> </p> <pre> //Java For-each loop example which prints the //elements of the array public class ForEachExample { public static void main(String[] args) { //Declaring an array int arr[]={12,23,44,56,78}; //Printing array using for-each loop for(int i:arr){ System.out.println(i); } } } </pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> 12 23 44 56 78 </pre> <h2>Java Labeled For Loop</h2> <p>We can have a name of each Java for loop. To do so, we use label before the for loop. It is useful while using the nested for loop as we can break/continue specific for loop.</p> <h4>Note: The break and continue keywords breaks or continues the innermost for loop respectively.</h4> <p> <strong>Syntax:</strong> </p> <pre> labelname: for(initialization; condition; increment/decrement){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>LabeledForExample.java</strong> </p> <pre> //A Java program to demonstrate the use of labeled for loop public class LabeledForExample { public static void main(String[] args) { //Using Label for outer and for loop aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break aa; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 </pre> <p>If you use <strong>break bb;</strong> , it will break inner loop only which is the default behaviour of any loop.</p> <p> <strong>LabeledForExample2.java</strong> </p> <pre> public class LabeledForExample2 { public static void main(String[] args) { aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break bb; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 3 1 3 2 3 3 </pre> <h2>Java Infinitive for Loop</h2> <p>If you use two semicolons ;; in the for loop, it will be infinitive for loop.</p> <p> <strong>Syntax:</strong> </p> <pre> for(;;){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForExample.java</strong> </p> <pre> //Java program to demonstrate the use of infinite for loop //which prints an statement public class ForExample { public static void main(String[] args) { //Using no condition in for loop for(;;){ System.out.println(&apos;infinitive loop&apos;); } } } </pre> <p> <strong>Output:</strong> </p> <pre> infinitive loop infinitive loop infinitive loop infinitive loop infinitive loop ctrl+c </pre> <p>Now, you need to press ctrl+c to exit from the program.</p> <h2>Java for Loop vs while Loop vs do-while Loop</h2> <table class="table"> <tr> <th>Comparison</th> <th>for loop</th> <th>while loop</th> <th>do-while loop</th> </tr> <tr> <td>Introduction</td> <td>The Java for loop is a control flow statement that iterates a part of the <a href="/java-programs-java-programming-examples">programs</a> multiple times. </td> <td>The Java while loop is a control flow statement that executes a part of the programs repeatedly on the basis of given boolean condition.</td> <td>The Java do while loop is a control flow statement that executes a part of the programs at least once and the further execution depends upon the given boolean condition.</td> </tr> <tr> <td>When to use</td> <td>If the number of iteration is fixed, it is recommended to use for loop.</td> <td>If the number of iteration is not fixed, it is recommended to use while loop.</td> <td>If the number of iteration is not fixed and you must have to execute the loop at least once, it is recommended to use the do-while loop.</td> </tr> <tr> <td>Syntax</td> <td>for(init;condition;incr/decr){ <br> // code to be executed <br> } </td> <td> while(condition){ <br> //code to be executed <br> } </td> <td> do{ <br> //code to be executed <br> }while(condition); </td> </tr> <tr> <td>Example</td> <td> //for loop <br> for(int i=1;i<=10;i++){ <br> System.out.println(i); <br> } </=10;i++){></td> <td> //while loop <br> int i=1; <br> while(i<=10){ <br> System.out.println(i); <br> i++; <br> } </=10){></td> <td> //do-while loop <br> int i=1; <br> do{ <br> System.out.println(i); <br> i++; <br> }while(i<=10); < td> </=10);></td></tr> <tr> <td>Syntax for infinitive loop</td> <td> for(;;){ <br> //code to be executed <br> }</td> <td> while(true){ <br> //code to be executed <br> }</td> <td> do{ <br> //code to be executed <br> }while(true); </td> </tr> </table> <hr></=3;i++){></pre></=3;i++){></pre></=5;i++){>

Piramide Esempio 2:

PyramidExample2.java

 public class PyramidExample2 { public static void main(String[] args) { int term=6; for(int i=1;i=i;j--){ System.out.print('* '); } System.out.println();//new line } } } 

Produzione:

 * * * * * * * * * * * * * * * * * * * * * 

Java per ogni ciclo

Il ciclo for-each viene utilizzato per attraversare array o raccolte in Java. È più facile da usare rispetto al semplice ciclo for perché non è necessario incrementare il valore e utilizzare la notazione in pedice.

Funziona sulla base degli elementi e non dell'indice. Restituisce gli elementi uno per uno nella variabile definita.

Sintassi:

 for(data_type variable : array_name){ //code to be executed } 

Esempio:

ForEachExample.java

 //Java For-each loop example which prints the //elements of the array public class ForEachExample { public static void main(String[] args) { //Declaring an array int arr[]={12,23,44,56,78}; //Printing array using for-each loop for(int i:arr){ System.out.println(i); } } } 

Produzione:

 12 23 44 56 78 

Java etichettato per il ciclo

Possiamo avere un nome per ogni ciclo for Java. Per fare ciò, usiamo label prima del ciclo for. È utile durante l'utilizzo del ciclo for nidificato poiché possiamo interrompere/continuare un ciclo for specifico.

carattere in lattice di dimensioni

Nota: le parole chiave break e continue interrompono o continuano rispettivamente il ciclo for più interno.

Sintassi:

 labelname: for(initialization; condition; increment/decrement){ //code to be executed } 

Esempio:

EtichettatoPerEsempio.java

 //A Java program to demonstrate the use of labeled for loop public class LabeledForExample { public static void main(String[] args) { //Using Label for outer and for loop aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break aa; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 </pre> <p>If you use <strong>break bb;</strong> , it will break inner loop only which is the default behaviour of any loop.</p> <p> <strong>LabeledForExample2.java</strong> </p> <pre> public class LabeledForExample2 { public static void main(String[] args) { aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break bb; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 3 1 3 2 3 3 </pre> <h2>Java Infinitive for Loop</h2> <p>If you use two semicolons ;; in the for loop, it will be infinitive for loop.</p> <p> <strong>Syntax:</strong> </p> <pre> for(;;){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForExample.java</strong> </p> <pre> //Java program to demonstrate the use of infinite for loop //which prints an statement public class ForExample { public static void main(String[] args) { //Using no condition in for loop for(;;){ System.out.println(&apos;infinitive loop&apos;); } } } </pre> <p> <strong>Output:</strong> </p> <pre> infinitive loop infinitive loop infinitive loop infinitive loop infinitive loop ctrl+c </pre> <p>Now, you need to press ctrl+c to exit from the program.</p> <h2>Java for Loop vs while Loop vs do-while Loop</h2> <table class="table"> <tr> <th>Comparison</th> <th>for loop</th> <th>while loop</th> <th>do-while loop</th> </tr> <tr> <td>Introduction</td> <td>The Java for loop is a control flow statement that iterates a part of the <a href="/java-programs-java-programming-examples">programs</a> multiple times. </td> <td>The Java while loop is a control flow statement that executes a part of the programs repeatedly on the basis of given boolean condition.</td> <td>The Java do while loop is a control flow statement that executes a part of the programs at least once and the further execution depends upon the given boolean condition.</td> </tr> <tr> <td>When to use</td> <td>If the number of iteration is fixed, it is recommended to use for loop.</td> <td>If the number of iteration is not fixed, it is recommended to use while loop.</td> <td>If the number of iteration is not fixed and you must have to execute the loop at least once, it is recommended to use the do-while loop.</td> </tr> <tr> <td>Syntax</td> <td>for(init;condition;incr/decr){ <br> // code to be executed <br> } </td> <td> while(condition){ <br> //code to be executed <br> } </td> <td> do{ <br> //code to be executed <br> }while(condition); </td> </tr> <tr> <td>Example</td> <td> //for loop <br> for(int i=1;i<=10;i++){ <br> System.out.println(i); <br> } </=10;i++){></td> <td> //while loop <br> int i=1; <br> while(i<=10){ <br> System.out.println(i); <br> i++; <br> } </=10){></td> <td> //do-while loop <br> int i=1; <br> do{ <br> System.out.println(i); <br> i++; <br> }while(i<=10); < td> </=10);></td></tr> <tr> <td>Syntax for infinitive loop</td> <td> for(;;){ <br> //code to be executed <br> }</td> <td> while(true){ <br> //code to be executed <br> }</td> <td> do{ <br> //code to be executed <br> }while(true); </td> </tr> </table> <hr></=3;i++){></pre></=3;i++){>

Se usi rompere bb; , interromperà solo il ciclo interno che è il comportamento predefinito di qualsiasi ciclo.

EtichettatoPerEsempio2.java

 public class LabeledForExample2 { public static void main(String[] args) { aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break bb; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 3 1 3 2 3 3 </pre> <h2>Java Infinitive for Loop</h2> <p>If you use two semicolons ;; in the for loop, it will be infinitive for loop.</p> <p> <strong>Syntax:</strong> </p> <pre> for(;;){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForExample.java</strong> </p> <pre> //Java program to demonstrate the use of infinite for loop //which prints an statement public class ForExample { public static void main(String[] args) { //Using no condition in for loop for(;;){ System.out.println(&apos;infinitive loop&apos;); } } } </pre> <p> <strong>Output:</strong> </p> <pre> infinitive loop infinitive loop infinitive loop infinitive loop infinitive loop ctrl+c </pre> <p>Now, you need to press ctrl+c to exit from the program.</p> <h2>Java for Loop vs while Loop vs do-while Loop</h2> <table class="table"> <tr> <th>Comparison</th> <th>for loop</th> <th>while loop</th> <th>do-while loop</th> </tr> <tr> <td>Introduction</td> <td>The Java for loop is a control flow statement that iterates a part of the <a href="/java-programs-java-programming-examples">programs</a> multiple times. </td> <td>The Java while loop is a control flow statement that executes a part of the programs repeatedly on the basis of given boolean condition.</td> <td>The Java do while loop is a control flow statement that executes a part of the programs at least once and the further execution depends upon the given boolean condition.</td> </tr> <tr> <td>When to use</td> <td>If the number of iteration is fixed, it is recommended to use for loop.</td> <td>If the number of iteration is not fixed, it is recommended to use while loop.</td> <td>If the number of iteration is not fixed and you must have to execute the loop at least once, it is recommended to use the do-while loop.</td> </tr> <tr> <td>Syntax</td> <td>for(init;condition;incr/decr){ <br> // code to be executed <br> } </td> <td> while(condition){ <br> //code to be executed <br> } </td> <td> do{ <br> //code to be executed <br> }while(condition); </td> </tr> <tr> <td>Example</td> <td> //for loop <br> for(int i=1;i<=10;i++){ <br> System.out.println(i); <br> } </=10;i++){></td> <td> //while loop <br> int i=1; <br> while(i<=10){ <br> System.out.println(i); <br> i++; <br> } </=10){></td> <td> //do-while loop <br> int i=1; <br> do{ <br> System.out.println(i); <br> i++; <br> }while(i<=10); < td> </=10);></td></tr> <tr> <td>Syntax for infinitive loop</td> <td> for(;;){ <br> //code to be executed <br> }</td> <td> while(true){ <br> //code to be executed <br> }</td> <td> do{ <br> //code to be executed <br> }while(true); </td> </tr> </table> <hr></=3;i++){>

Infinito Java per Loop

Se usi due punti e virgola ;; nel ciclo for, sarà il ciclo for infinito.

Sintassi:

 for(;;){ //code to be executed } 

Esempio:

Ad esempio.java

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 //Java program to demonstrate the use of infinite for loop //which prints an statement public class ForExample { public static void main(String[] args) { //Using no condition in for loop for(;;){ System.out.println('infinitive loop'); } } } 

Produzione:

 infinitive loop infinitive loop infinitive loop infinitive loop infinitive loop ctrl+c 

Ora devi premere ctrl+c per uscire dal programma.

Java per Loop vs. while Loop vs. do- while Loop