Quiz - Programming With Java - Language Fundamentals

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[All Quizzes] → [Programming With Java] → [Language Fundamentals]

1. ► Select the true statement about given code ?

class Solution {
    public static void main(String[]args) {
        for (int i = 0; i < args.length; i++)
            System.out.print(i == 0 ? args[i] : " " + args[i]);
        System.out.println();
}}

A. To compile type command " javac Solution.java"
B. To run this programme type command "java Solution"
C. If you type following command "java Solution test java" out put will be "test java"
D. This compilation unite will be saved in file as Solution.java
E. All

2. ► What will be the output of following program?

public class Fun {
    public static void main(String[]args) {
        int i = 0;
         System.out.print(i++ + " " + ++i);
         i = ++i;
         System.out.print(i);



}}

A. 0
B. 2
C. 3
D. 23
E. 0 23

3. ► Select declaration where array objects are created?

A. int [] array;
B. int Arrayfactorial = {1,1,2,6,24};
C. char c;
D. byte[] rowvector, colvector, matrix[];
E. Exception ae[] = new Exception[3];

4. ► What would be output of following program

public class SolArray {
    public static void main(String[]args) {
        int array1[] = { 1, 2 };

        int array2[] = array1;

        System.out.print((array1 == array2) + " ");
        array1[1]++;
        System.out.println(array2[1]);
    }
}

A. false 2
B. false 10
C. false 1
D. true 3
E. true 2

5. ► Which statements are true about following code?

Class A {
    int x;
} class B extends A {
    int y;
}

A. Class B extends Class A.
B. Class A is super class of Class B
C. Objects of class B will have a field named x;
D. Class B is subclass of Class A.
E. All

6. ► Which statement is true? Select one correct answer.

A. try, catch and thrown are keywords in java language.
B. new and old are keywords in java language.
C. return,this,void are keywords in java language.
D. while,next,for are keywords in java.
E. exit,if,finally are keywords in java language.

7. ► Select option(s) which represent output of following program.

public class SolArray {
    public static void main(String[]args) {
        int array1[] = { 1, 2 };

        int array2[] = array1;

        System.out.println(array1.getClass());
        System.out.println(array1.getClass().getSuperclass());

    }
}

A. class [I class java.lang.Object
B. class array
C. class array[]
D. class java.lang.Object
E. All

8. ► Which of following is/are java reserve keywords?

A. new
B. java
C. goto
D. class
E. All

9. ► What is the command to check version of installed java?

A. java -version
B. java --version
C. java -v
D. java --v
E. none

10. ► Selects correct declaration of array variable?

A. short [][] arr
B. Object [] objArr
C. byte[] rowvector, colvector, matrix[];
D. byte rowvector[], colvector[], matrix[][];
E. All

11. ► Which of following statement is true about comments in java programming language?

/* text *///test

A. All the text from ASCII characters /* to ASCII */ is ignored.
B. All the text from ASCII characters // to end-of-line are ignored.
C. You cannot nest comments in java programming language.
D. If comment begin with // ASCII characters /* and */ have no special meaning.
E. All

12. ► What would be output of following program?

public class FunOp {
    public static void main(String[]args) {
        int x = 3, y = 5;
        int a = x + y - x / y + 2;
        int b = (x + y) - x / (y + 2);
         System.out.println(a + b);
}}

A. 10 8
B. 18
C. 9
D. 108
E. none

13. ► Which statement(s) is true about java?

A. Java is object oriented programming language.
B. Java is platform independent.
C. Java is architecture neutral.
D. Java is interpreted.
E. All

14. ► What command should be used to execute main method of class Solution?

A. Javac Solution
B. java Solution.main
C. java Solution
D. java Solution.class
E. java Solution.java

15. ► Which statement is true about integer?

A. A integer can be represented in decimal (base 10 ) format.
B. A integer can be represented in hexadecimal (base 16) format.
C. A integer can be represented in octal (base 8) format.
D. A integer can have negative value.
E. All

16. ► What would be output of following program?

public class FunDo {
    public static void main(String[]args) {
        int x = 9;
         x += (x = 3);
         System.out.print(x);
        int y = 9;
         y = y + (y = 3);
         System.out.print(" ");
         System.out.println(y);
}}

A. 9 9
B. 3 9
C. 12 9
D. 12 12
E. 9 12

17. ► Which of following is not of integer types?

A. long
B. FALSE
C. double
D. float
E. byte

18. ► What would be output of following program?

public class FunDo {
    public static void main(String[]args) {
        int i = 2;
        int j = (i = 3) * i;
         System.out.println(j);
}}

A. 2
B. 3
C. 6
D. 9
E. 12

19. ► Java is strongly typed language, true or false?

A. TRUE
B. FALSE

20. ► Which of following can be represented as literal in java?

A. Integer
B. Float
C. String
D. Null
E. All