JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Java Thread Sleep

  • It makes current executing thread to sleep specified number of milli seconds. Below example shows sample code for thread sleep.

Thread Sleep Sample Code

Code:
package com.myjava.threads;

import java.util.ArrayList;
import java.util.List;

public class MyThreadSuspend {
    public static void main(String a[]){
        List<ExmpThread> list = new ArrayList<ExmpThread>();
        for(int i=0;i<4;i++){
            ExmpThread et = new ExmpThread(i+10);
            list.add(et);
            et.start();
        }
        for(ExmpThread et:list){
            try {
                et.join();
            } catch (InterruptedException ex) { }
        }
    }
}

class ExmpThread extends Thread{
    private int suspendCount;
    public ExmpThread(int count){
        this.suspendCount = count;
    }
    public void run(){
        for(int i=0;i<50;i++){
            if(i%suspendCount == 0){
                try {
                    System.out.println("Thread Sleep: " + getName());
                    Thread.sleep(500);
                } catch (InterruptedException ex) { }
            }
        }
    }
}

Example Output

Thread Sleep: Thread-0
Thread Sleep: Thread-2
Thread Sleep: Thread-1
Thread Sleep: Thread-3
Thread Sleep: Thread-0
Thread Sleep: Thread-2
Thread Sleep: Thread-1
Thread Sleep: Thread-3
Thread Sleep: Thread-2
Thread Sleep: Thread-0
Thread Sleep: Thread-1
Thread Sleep: Thread-3
Thread Sleep: Thread-0
Thread Sleep: Thread-2
Thread Sleep: Thread-1
Thread Sleep: Thread-3
Thread Sleep: Thread-2
Thread Sleep: Thread-0
Thread Sleep: Thread-1

Other Thread Examples

Knowledge Centre
What is wrapper class?
Everything in java is an object, except primitives. Primitives are int, short, long, boolean, etc. Since they are not objects, they cannot return as objects, and collection of objects. To support this, java provides wrapper classes to move primitives to objects. Some of the wrapper classes are Integer, Long, Boolean, etc.
Famous Quotations
Do not confuse motion and progress. A rocking horse keeps moving but does not make any progress.
-- Alfred A. Montapert

About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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