Interface with class and interface as member

/**
 *
 * @author bhavesh
 */


public interface MyOuterInterface {
   
// static class

    public  class myinn {
       
        private int var;
       
        public void setVar(int v) {
           
            var =v;
        }
        public int getVar()  {  return var; }
    }
   
    // static interface

    public interface myint {
       
    }
   
}


// Use of above interface with its inner class  example

/**
 *
 * @author bhavesh
 */
public class MainOuterClass {

       public static void main(String[] args) {
        
        MyOuterExample me = new MyOuterExample();
        
        me.callMethod();
       
      
    }
    
}

class MyOuterExample implements MyOuterInterface {
    
   myinn my = new myinn();
   
  public void callMethod() {
      
      my.setVar(20);
      System.out.println("value of interface  : .. " +my.getVar() );
  }
}



Comments

Post a Comment

Popular posts from this blog

Custom Exception example for BankAccount

class BankAccount {      int accountNumber;     double accountBalance;     public BankAccount(int accountNumber, double accountBalance) {         this.accountNumber = accountNumber;         this.accountBalance = accountBalance;     }     public int getAccountNumber() {         return accountNumber;     }     public double getAccountBalance() {         return accountBalance;     }           public boolean withdraw (double amount) throws WithdrawLimitException     {         if( amount > accountBalance) {                      throw new WithdrawLimitException("Withdrawing Amount is more than Balance amount.. ");                       ...
Read more

Annotation

import java.lang.annotation.ElementType; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; import java.lang.annotation.Target; import java.util.Date; /**  *  * @author bhavesh  */ @Retention(RetentionPolicy.CLASS) @Target(ElementType.TYPE) public @interface NewAnnotation {         public String name();     public int myno() default 10;     //public Date mydate =new Date();                 } /**  *  * @author bhavesh  */ class A {     public void test()     {             } } class B extends A {     @Override     public void test()     {             } } // Use of annotation called NewAnnotation .... @NewAnnotation(name="ISTAR")       public class ClassAnnotationTest { ...
Read more