Java Programing laungage

Core Java Tutorial

Introduction of Core Java

How To Install JDk and Set of Path

Syntax of java Program

Difference between Java and C/C++

Advantage and Disadvantage of Java

What is Java

Why Java is not Pure Object Oriented Language

Java has Following Features/Characteristics

Limitation of Java Language and Java Internet

Common Misconception about Java

Simple Program of Java

Integrated Development Environment in java

Compile and Run Java Program

Applet and Comments in Java

Tokens in Java

Keywords in Java

Identifier and Variables in Java

Literals/Constants

Data Type in Java

Assignments and Initialization in Java

Operators in Java

Rule of Precedence in Java

Operator on Integer and Separators in Java Programming

Java Control Flow of Statements

If and If-else Selection Statement

Nested If-else and If-else-If Selection Statement

switch case and conditional operator Selection Statement

for and while Loop

do..while and for each Loop

break and labeled break statement

continue and labeled continue statement

return Statement and exit() Method

Escape Sequence for Special Characters and Unicode Code

Constants and Block or Scope

Statement in Java

Conversions between Numeric Types in Java

Import Statement in Java

User Input in Java using Scanner Class

User Input in Java using Console Class

Array in Java

One Dimensional Array

Two Dimensional Array

Two Dimensional Array Program

Command Line Argument in Java

String args Types in Java

Uneven/Jagged array in java

Math Class Function and Constant

Math Class all Function used in a program

Enumerated Types in Java

Object Oriented Programming v/s Procedural Programming

Object Oriented Programming Concepts in Java

Introduction to Class,Object and Method in Java

Class Declaration in Java

Class & Objects in java

Encapsulation in Java

Modifiers/Visibility for a Class or Interrface or member of a Class

Polymorphism in Java

Runtime polymorphism (dynamic binding or method overriding)

Implementing Thread using Runnable Interface
Previous Home Next

Runnable interface contains only one method. that is:

public void run();

This method implemented by the class inherits Runnable interface. Use of Runnable interface is as follows.

Example

/*
 * Save as use_runnable.java
 * Using Runnable interface
 */
package multithradingexample2;
 class threaddemo implements Runnable{
Thread t;
 threaddemo(String name)
 {
 t=new Thread(this,"Demo Thread");
 t.setName(name);
 t.start();
 }
 public void run()
  {
 for(int i=0;i<3;i++)
 {
     try{
     System.out.println(t.getName());
     Thread.sleep(500);
     }
     catch(InterruptedException e)
     {
     System.out.println(e.toString());
     }
    }
 }
 }
public class use_runnable {
public static void main(String[] str)
{
   threaddemo th1=new threaddemo("first thread");
   threaddemo th2=new threaddemo("second thread");
  
}
}

Output:

first thread
second thread
second thread
first thread
second thread
first thread

In above program an instance of Thread class created in constructor of thread demo class. This instance calls start() method. Without calling start() Thread can't be initiated.

Sleep method used in above program. suspend that thread for few time period. It is static method , hence called by class name . Argument passed in sleep method is time in milliseconds.

Few other methods of Thread class
  1. public string getName():Get name of thread

  2. public void setName(String ):Set name of thread

  3. public boolean isAlive():Check whether thread is alive or not.

  4. public void join() or pubic void join(int millisecond):suspend the thread

  5. public void setPriority(int):Set priority of the tthread

  6. pulic int getPriority():obtain priority of a thread.

Previous Home Next