- 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.lang.Thread.checkAccess() Method
Description
The java.lang.Thread.checkAccess() method determines if the currently running thread has permission to modify this thread.
Declaration
Following is the declaration for java.lang.Thread.checkAccess() method
public final void checkAccess()
Parameters
NA
Return Value
This method does not return any value.
Exception
SecurityException − if the current thread is not allowed to access this thread.
Example
The following example shows the usage of java.lang.Thread.checkAccess() method.
package com.tutorialspoint; import java.lang.*; public class ThreadDemo { public static void main(String args[]) { new ThreadClass("A"); Thread t = Thread.currentThread(); try { /* determines if the currently running thread has permission to modify this thread */ t.checkAccess(); System.out.println("You have permission to modify"); } /* if the current thread is not allowed to access this thread, then it result in throwing a SecurityException. */ catch(Exception e) { System.out.println(e); } } } class ThreadClass implements Runnable { Thread t; String str; ThreadClass(String str) { this.str = str; t = new Thread(this); // this will call run() function t.start(); } public void run() { System.out.println("This is run() function"); } }
Let us compile and run the above program, this will produce the following result −
You have permission to modify This is run() function
java_lang_thread.htm
Advertisements