Java- break keyword / Chapter -7 / Flow Control

The break keyword is used to break the control flow from switch & loops.

We can use break keyword in following places.

• Inside switch ( ) to stop fall through.

example:

int x=0

switch(x)

{

  case 0 :

              System.out.println(0);

case 1 :
System.out.println(1);
break;
case 2 :
System.out.println(2);

default : System.out.println(default);
}
Output is :   0
1

• Inside loop to break loop execution based on some condition.

example:-

for(int i=0;i<10;i++)
{
if(i==5)
break;
System.out.println(i);
}
Output is :  0
1
2
3
4

• Inside labeled  blocks:

To break execution based on some condition.

example:-
class Test
{
public static void main(String [] args)
{
int x=10;
l1:
{
System.out.println("begin");
if(x==10)
break;
else
System.out.println("end");
}
System.out.println("Hello");
}
}
Output is: -   begin
Hello

Note: These are the only places where we can use the break statement.
If we are using break anywhere else we will get compile time error saying"break outside switch or loop".
example:-
class Test
{
public static void main(String [] args)
{
int x=10;
if(x==10)
break;
System.out.println("Hello");
}
}              Compile Time Error: break outside switch or loop