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SCJP Module-4 Question-15

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The program given below tests your understanding of inheritance and, function overloading and function overriding in Java.

Given below the sample code :

class SuperClass1
{
private void m1()
{
System.out.println("SuperClass's m1()");
}
public void m2()
{
System.out.println("SuperClass's m2()");
m1();
}
}
class Modify extends Superclass
{
public void m1()
{
System.out.println("Modify's method1()");
}
public static void main(String args[])
{
SuperClass1 s = new Modify();
s.m2();
}
}

What will be the output of the following :

1. Prints : SuperClass's m1()

2. Prints : SuperClass's m2()

3. Error in compilation.

4.  Prints : SuperClass's m1()  SuperClass's m2()

Answer :

(3)

Explanation :

Type mismatch: cannot convert from Modify to SuperClass1.

 

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