Explore topic-wise MCQs in Java Programming.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Java Programming knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the output of this program?

public class Result 
 {
 public static void main(String args[])
 {
 char chars;
 chars = "hello".charAt(0);
 System.out.println(chars);
 }
 }
A. h
B. e
C. l
D. o
E. None of these
Answer» B. e
Discussion
2.

What is the output of this program?
public class Result 
 {
 public static void main(String args[])
 {
 String a = "hello i love interview mania";
 System.out.println(a.indexOf('i')+" "+a.indexOf('o') +" "+a.lastIndexOf('i')+" "+a.lastIndexOf('o'));
 }
 }
A. 6 4 26 4
B. 4 6 21 4
C. 4 4 6 21
D. 21 6 4 4
E. 4 21 6 4
Answer» B. 4 6 21 4
Discussion
3.

In below code, what can directly access and change the value of the variable name?

package output;
 class Test 
 {
 public String name = "Interview Mania";
 }
A. any class that extends Test
B. any class in the output package
C. only the Test class
D. any class
E. None of these
Answer» C. only the Test class
Discussion
4.

What will be output of the following code?

public class Result 
{
 Integer K;
 int p;
 public Result(int q) 
 {
 p = K+q;
 System.out.println(p);
 }
 public static void main(String[] args) 
 {
 new Result (new Integer(8));
 }
}
A. A NullPointerException occurs at runtime
B. The value 8 is printed at the command line
C. An IllegalStateException occurs at runtime
D. Compilation fails because of an error in line
E. None of these
Answer» D. Compilation fails because of an error in line
Discussion
5.

What is the output of this program?

public class Result 
 {
 public static void main(String args[])
 { 
 String ch = "Hello i love Interview mania";
 int start = 13;
 int end = 28;
 char str[]=new char[end-start];
 ch.getChars(start,end,str,0);
 System.out.println(str);
 }
 }
A. Hello i
B. love Interview
C. love Interview mania
D. Hello i love Interview mania
E. i love Interview mania
Answer» F.
Discussion
6.

In below code, what can directly access and change the value of the variable name?

A. any class that extends Test
B. any class in the output package
C. only the Test class
D. any class
E. None of these
Answer» C. only the Test class
Discussion