JAVA QUIZ 4

1. 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");
}
}

2. Which class can access all public and protected methods and fields of its super class?

3. Method,Field can be accessed from the same class to which they belong.

4. How do you create a method in Java?

5. Which of the following is true about inheritance in Java?

1) Private methods are final.
2) Protected members are accessible within a package and
inherited classes outside the package.
3) Protected methods are final.
4) We cannot override private methods.

6. Output of following Java program?

final class Complex {

private final double re;
private final double im;

public Complex(double re, double im) {
this.re = re;
this.im = im;
}

public String toString() {
return "(" + re + " + " + im + "i)";
}
}

class Main {
public static void main(String args[])
{
Complex c = new Complex(10, 15);
System.out.println("Complex number is " + c);
}
}

7. What will be the output of following piece of code? ? public class operatorExample { public static void main(String args[]) { int x=10; System.out.println(x++); } }

8. Which keyword is used to create a class in Java?

9. Which interface should be implemented for sorting on basis of many criteria’s?

10.Which method can be used to find the highest value of x and y?