Java System exit() Method

The exit() method of System class terminates the current Java virtual machine running on system. This method takes status code as an argument.

• Note: Status - exit(0) - indicates Successful termination
• Status - exit(-1) - indicates unsuccessful termination with Exception
• Status - exit(1) - indicates Unsuccessful termination

Syntax

1. public static void exit(int status)  

Parameter

status - It is the exit status.

Returns

This method does not return any value.

Exception

If security manager exist and his checkexit method doesn't approve exit with specified status then a SecurityException is thorwn.

Example 1

1. import java.lang.*;  
2. public class SystemExitExample1 {  
3.   
4.     public static void main(String[] args) {  
5.         int a[]= {9,8,7,6,5,4,3,2,1};  
6.         for(int i=0;i<a.length;i++)  
7.         {  
8.             if(a[i]>5)  
9.             {  
10.             System.out.println("array["+i+"]="+a[i]);  
11.             }  
12.             else  
13.             {  
14.                 System.out.println("terminating jvm,exiting");  
15.                 System.exit(0);//Treminatejvm  
16.             }  
17.         }  
18.     }  
19. }  

Test it Now

Output:

array[0]=9
array[1]=8
array[2]=7
array[3]=6
terminatingjvm,exiting

Example 2

1. public class SystemExitExample2 {  
2.   
3.     public static void main(String[] args) {  
4.         System.out.println("program will terminate when i is 1");  
5. for(int i=10;i>0;i--)    {         
6. System.out.println("your no is "+i);  
7. if(i==1){  
8. System.out.println("Value is 1 now terminating your program");  
9. System.exit(1); //exit program  
10.             }  
11.             }  
12.     }  
13. }  

Test it Now

Output:

program will terminate when i is 1
your no is 10
your no is 9
your no is 8
your no is 7
your no is 6
your no is 5
your no is 4
your no is 3
your no is 2
your no is 1
Value is 1 now terminating your program