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- Java.lang Package classes
- Java.lang - Home
- Java.lang - Boolean
- Java.lang - Byte
- Java.lang - Character
- Java.lang - Character.Subset
- Java.lang - Character.UnicodeBlock
- Java.lang - Class
- Java.lang - ClassLoader
- Java.lang - Compiler
- Java.lang - Double
- Java.lang - Enum
- Java.lang - Float
- Java.lang - InheritableThreadLocal
- Java.lang - Integer
- Java.lang - Long
- Java.lang - Math
- Java.lang - Number
- Java.lang - Object
- Java.lang - Package
- Java.lang - Process
- Java.lang - ProcessBuilder
- Java.lang - Runtime
- Java.lang - RuntimePermission
- Java.lang - SecurityManager
- Java.lang - Short
- Java.lang - StackTraceElement
- Java.lang - StrictMath
- Java.lang - String
- Java.lang - StringBuffer
- Java.lang - StringBuilder
- Java.lang - System
- Java.lang - Thread
- Java.lang - ThreadGroup
- Java.lang - ThreadLocal
- Java.lang - Throwable
- Java.lang - Void
- Java.lang Package extras
- Java.lang - Interfaces
- Java.lang - Errors
- Java.lang - Exceptions
- Java.lang Package Useful Resources
- Java.lang - Useful Resources
- Java.lang - Discussion
Java Runtime halt(int status) Method
Description
The Java Runtime halt(int status) method forcibly terminates the currently running Java virtual machine. This method never returns normally. This method should be used with extreme caution. Unlike the exit method, this method does not cause shutdown hooks to be started and does not run uninvoked finalizers if finalization-on-exit has been enabled. If the shutdown sequence has already been initiated then this method does not wait for any running shutdown hooks or finalizers to finish their work.
Declaration
Following is the declaration for java.lang.Runtime.halt() method
public void halt(int status)
Parameters
status − Termination status. By convention, a nonzero status code indicates abnormal termination. If the exit (equivalently, System.exit) method has already been invoked then this status code will override the status code passed to that method.
Return Value
This method does not return a value.
Exception
SecurityException − If a security manager is present and its checkExit method does not permit an exit with the specified status
Example: Halting a Program
The following example shows the usage of Java Runtime halt() method. In this program, we've halted the program using halt() method. Then a statement is printed to check if program is still running. As a result, only a statement before halt() method is printed.
package com.tutorialspoint; public class RuntimeDemo { public static void main(String[] args) { // print when the program starts System.out.println("Program starting..."); // halt this process Runtime.getRuntime().halt(0); // print a string, just to see if it process is halted System.out.println("Process is still running."); } }
Output
Let us compile and run the above program, this will produce the following result −
Program starting...