What is the output of the below program?

package com.aricent.interview;

class C
{
static int a=3;
void m1() {}
void m2() {}
void m3() {}
static void m4() {System.out.println("--Parent class--static--method---");}
}
class B extends C
{
void m1() {}
void m2() {}
void m3() {}
static void m4() {System.out.println("---Child class ---static method---");}
void m5() {}

}
public class A {

public static void main(String[] args) {
C c=new B();
c.m1();
c.m2();
c.m3();
c.m4();
c=null;
c.a=8;
System.out.println(c.a);
c.m5();
}
}

Question

What is the output of the below program?

package com.aricent.interview;

class C
{
	static int a=3;
	void m1() {}
	void m2() {}
	void m3() {}
	static void m4() {System.out.println("--Parent class--static--method---");}
}
class B extends C
{
	void m1() {}
	void m2() {}
	void m3() {}
	static void m4() {System.out.println("---Child class ---static method---");}
	void m5() {}
	
}
public class A {
	
	public static void main(String[] args) {
		C c=new B();
		c.m1();
		c.m2();
		c.m3();
		c.m4();
		c=null;
		c.a=8;
		System.out.println(c.a);
		c.m5();
	}
}

Sigiloso · Accepted Answer

Output:
1) The method m5() is undefined for the type C
2) If c.m5() is commented then :
--Parent class--static--method---
8

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