///Java Lab 7
///Use Of Interface

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//ME.java
package javalab7;

/**
 *
 * @author student
 */
public interface ME {

    public void task1(String s);
    public void task2();
    public void task3();

}

/*
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 * To change this template file, choose Tools | Templates
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 */

//Demo.java

package javalab7;

/**
 *
 * @author student
 */
public class Demo implements ME
{
    public void task1(String temp)
    {
        System.out.println(temp + "(TASK 1) is executed ");
    }

     public void task2()
    {
        System.out.println("TASK 2 is executed ");
    }
      public void task3()
    {
        System.out.println("TASK 3 is executed ");
    }
      public void DemoOwn()
    {
        System.out.println("DemoOwn is executed ");
    }
}

//Demo2.java

package javalab7;

/**
 *
 * @author student
 */
abstract public class Demo2 implements ME{

    public void task1(String temp){

        System.out.println(temp + "(TASK 1) is executed from DEMO2");
    }
    public void task2(){}


}

package javalab7;

/**
 *
 * @author student
 */
public class JavaLab7 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
     Demo obj = new Demo();
     Demo2 obj2 = new Demo2();

       obj.task1("Hello");
       obj.task2();
       obj.task3();
       obj.DemoOwn();

    obj2.task1("HI");
    }

}