This loop will work when the number of iterations is not known and the code has to run at least once. This loop will execute the program a number of times until the condition is false. The do-while loop will get executed at least once because the condition is checked after the first iteration at the end of the program block. Syntax
do{
//code to be executed
}
while(condition);
Example
public class DoWhileExample {
public static void main(String[] args) {
int i=1;
do{
System.out.println(i);
i++;
}while(i<=3);
}
}
Output
1 2 3
Infinitive do-while loop This loop will execute infinite time if we pass the true condition. You can exit the infinite loop by pressing ctrl+c.
Syntax
do{
//code to be executed
}
while(true);
Example
public class DoWhileExample2 {
public static void main(String[] args) {
do{
System.out.println("infinitive do while loop");
}while(true);
}
}
Output
infinitive do while loop infinitive do while loop infinitive do while loop ctrl+c
Conclusion
To sum it up, the do-while loop in Java is an Exit Control loop. It iterates the part of a program repeatedly until the specified condition holds True. It is ideal to use the do-while loop when the number of iterations is not specified and you have to execute the loop at least once. We hope this article helped you develop a good understanding of the do-while loop in Java. Also, we have discussed do-while and infinitive do-while loops with appropriate examples.
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