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System.exit() in Java

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  • Difficulty Level : Basic
  • Last Updated : 10 Jul, 2016
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The java.lang.System.exit() method exits current program by terminating running Java virtual machine. This method takes a status code. A non-zero value of status code is generally used to indicate abnormal termination. This is similar exit in C/C++.

Following is the declaration for java.lang.System.exit() method:

public static void exit(int status)

exit(0) : Generally used to indicate successful termination.
exit(1) or exit(-1) or any other non-zero value – Generally indicates unsuccessful termination.

Note : This method does not return any value.

The following example shows the usage of java.lang.System.exit() method.

// A Java program to demonstrate working of exit()
import java.util.*;
import java.lang.*;
class GfG
    public static void main(String[] args)
        int arr[] = {1, 2, 3, 4, 5, 6, 7, 8};
        for (int i = 0; i < arr.length; i++)
            if (arr[i] >= 5)
                // Terminate JVM
                System.out.println("arr["+i+"] = " +
        System.out.println("End of Program");


arr[0] = 1
arr[1] = 2
arr[2] = 3
arr[3] = 4

Reference :

This article is contributed by Amit Khandelwal .If you like GeeksforGeeks and would like to contribute, you can also write an article using or mail your article to See your article appearing on the GeeksforGeeks main page and help other Geeks.

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