Question 21. Determine output:
class A{
{
System.out.print("b1 ");
}
public A(){
System.out.print("b2 ");
}
}
class B extends A{
static{
System.out.print("r1 ");
}
public B(){
System.out.print("r2 ");
}
{
System.out.print("r3 ");
}
static{
System.out.print("r4 ");
}
}
public class Test extends B{
public static void main(String[] args){
System.out.print("pre ");
new Test();
System.out.println("post ");
}
}

Question 22. What will be the output for the below code?
static public class Test{
public static void main(String[] args){
char c = 'a';
switch(c){
case 65 : System.out.println("one");break;
case 'a': System.out.println("two");break;
case 3 : System.out.println("three");
}
}
}

Question 23. What will be the output after compiling and running following program code?
public class Test{
static int a;
public static void main(String[] args){
System.out.println("one");
call(1);
}
static void call(int a){
this.a=10;
System.out.println("two "+a);
}
}

Question 24. What will be the output after the following program is compiled and executed?
public class Test{
public static void main(String args[]){
int x = 10;
x = myMethod(x--);
System.out.print(x);
}
static int myMethod(final int x){
return x--;
}
}

Question 25. What can directly access and change the value of the variable qusNo?
package com.mypackage;
public class Test{
private int qusNo = 100;
}