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How to use labels in Java code?
Java provides two types of branching/control statements namely, break and continue.
The break statement
This statement terminates the loop or switch statement and transfers execution to the statement immediately following the loop or switch.
Example
Following is the example of the break statement. Here we are trying to print elements up to 10 and, using break statement we are terminating the loop when the value in the loop reaches 8.
public class BreakExample {
public static void main(String args[]){
for(int i=0; i<10; i++){
if (i==8){
break;
}
System.out.println("......."+i);
}
}
}Output
.......0 .......1 .......2 .......3 .......4 .......5 .......6 .......7
The continue statement
This statement causes the loop to skip the remainder of its body and immediately retest its condition prior to reiterating.
Example
Following is the example of the continue statement. Here we are trying to print elements up to 10 and, using break continue we are skipping the loop when the value in the loop reaches 8.
public class ContinueExample {
public static void main(String args[]){
for(int i=0; i<10; i++){
if (i==8){
continue;
}
System.out.println("......."+i);
}
}
}Output
.......0 .......1 .......2 .......3 .......4 .......5 .......6 .......7 .......9
Java provides two types of branching statements namely, labelled and unlabelled.
We can also use the above-mentioned branching statements with labels.
You can assign a label to the break/continue statement and can use that label with the break/continue statement as −
Task:
for(int i=0; i<10; i++){
if (i==8){
continue Task;
(or)
break Task;
}
}The labelled break statement
The labeled break statement terminates the outer most loop whereas the normal break statement terminates the innermost loop.
Example
public class LabeledBreakExample {
public static void main(String args[]){
Task:
for(int i=0; i<10; i++){
if (i==8){
break Task;
}
System.out.println("......."+i );
}
}
}Output:
.......0 .......1 .......2 .......3 .......4 .......5 .......6 .......7 .......9
The labelled continue statement
The labelled continue statement skips the current iteration of the outer most loop whereas the normal continue skips the current iteration of the innermost loop.
Example
public class LabeledContinueExample {
public static void main(String args[]){
Task:
for(int i=0; i<10; i++){
if (i==8){
continue Task;
}
System.out.println("......."+i );
}
}
}Output
.......0 .......1 .......2 .......3 .......4 .......5 .......6 .......7 .......9
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