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Java Programming Questions and Answers

Software Programming : Java Programming QUESTIONS AND ANSWERS :: part12 : 11 to 15

Following Software Programming language Entrance Multiple choice objective type questions and answers will help you in Software Programming 2024 examinations :

11.What is the printout of the third println statement in the main method? public class Foo { int i; static int s; public static void main(String[] args) { Foo f1 = new Foo(); System.out.println("f1.i is " + f1.i + " f1.s is " + f1.s); Foo f2 = new Foo(); System.out.println("f2.i is " + f2.i + " f2.s is " + f2.s); Foo f3 = new Foo(); System.out.println("f3.i is " + f3.i + " f3.s is " + f3.s); } public Foo() { i++; s++; } }

f3.i is 1 f3.s is 1

f3.i is 1 f3.s is 2

f3.i is 1 f3.s is 3

f3.i is 3 f3.s is 1

f3.i is 3 f3.s is 3.

12.What is the printout of the second println statement in the main method? public class Foo { int i; static int s; public static void main(String[] args) { Foo f1 = new Foo(); System.out.println("f1.i is " + f1.i + " f1.s is " + f1.s); Foo f2 = new Foo(); System.out.println("f2.i is " + f2.i + " f2.s is " + f2.s); Foo f3 = new Foo(); System.out.println("f3.i is " + f3.i + " f3.s is " + f3.s); } public Foo() { i++; s++; } }

f2.i is 1 f2.s is 1

f2.i is 1 f2.s is 2

f2.i is 2 f2.s is 2

f2.i is 2 f2.s is 1

f2.i is 0 f2.s is 1.

13.What is wrong in the following code? class TempClass { int i; public void TempClass(int j) { int i = j; } } public class C { public static void main(String[] args) { TempClass temp = new TempClass(2); } }

The program has a compilation error because TempClass does not have a default constructor

The program has a compilation error because TempClass does not have a constructor with an int argument

The program compiles fine, but it does not run because class C is not public

The program compiles and runs fine

All of the above.

14.What code may be filled in the blank without causing syntax or runtime errors? public class Test { java.util.Date date; public static void main(String[] args) { Test test = new Test(); System.out.println(_________________); } }

Test.date

Date

Test.date.toString()

Date.toString()

Date.test.

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