Gantry 5
Java Overrding Part 1

What is the output of following code snippet ?


public class TestOverriding {
	public static void main(String aga[]){
	Test t =new Fest();
	t.tests();
	}
}
class Test{
	 void tests(){
		System.out.println("Test class : tests");
	}
}
class Fest extends Test{
	static void tests(){
		System.out.println("Fest class : tests");
	}
}

 

What will be the output the following method Java code

public class TestOverriding {
	public static void main(String aga[]){
	Test t =new Fest();
	t.tests();
	}
}
class Test{
	 private void tests(){
		System.out.println("Test class : tests");
	}
}
class Fest extends Test{
	public void tests(){
		System.out.println("Fest class : fests");
	}
}

 

What is the output of the following code snippet  ?

public class TestOverriding {
    public static void main(String aga[]){
    Super superRef =new Sub();
    Sub subRef = new Sub();
    Super suRef=new Super();
    
    superRef.tests();
    subRef.tests();
    suRef.tests();
    }
}
class Super{
     public static void tests(){
        System.out.println("Super static");
    }
}
class Sub extends Super{
    public static void tests(){
        System.out.println("Sub static");
    }
}

 

public class TestOverriding {
	public static void main(String aga[]){
		Parrot bird=new Parrot();
		bird.fly();
	}
}
class Bird{
	 private  void fly(){
		System.out.println("Bird is flying");
	}
}
class Parrot extends Bird{
	public void doStuff(){
		System.out.println("I am parrot , and I am doing stuff");
	}
}

 

whether the following will compile

import java.io.IOException

class Animal {
  public void eat() throws IOException {
  }
}
class Dog extends Animal {
  public void  eat() throws IOException {
  }
}

 

Is the following code is a valid override ?

class MyClass {
   void add(int i, int ti) {
   // I will do later
  }
}

class MySubclass extends MyClass {
  public void add(int i, int ti) {
   // Will do now
  }
}