JAVA FUNDAMENTALS

Which of the following can be operands of arithmetic operators?

• Numeric

• Boolean

• Both Numeric & Characters

• Characters

What will be the output of the following Java program?

class Output {

public static void main(String args[]) {

int a = 1;

int b = 2;

int c;

int d;

c = ++b;

d = a++;

c++;

b++;

++a;

System.out.println(a + " " + b + " " + c); }

}

• 324

• 323

• 244

• 234

• 344

What will be the output of the following Java code?

class operators {

public static void main(String args[]) {

int x = 8;

System.out.println(++x * 3 + " " + x); }

• 24 8

• 27 9

• 24 9

• 27 8

What will be the output of the following Java code?

class Relational_operator {

public static void main(String args[]) {

int var1 = 5;

int var2 = 6;

System.out.print(var1 > var2); }

}

• 5

• 6

• FALSE

• TRUE

Which of these is not an Assignment Operator?

• &=

• |=

• +=

• <=

What will be the output of the following Java program?

class booloperators {

public static void main(String args[]) {

boolean var1 = true;

boolean var2 = false;

System.out.println((var1 & var2));

}

}

• True

• False

• 1

• 0

What will be the output of the following Java program?

public static void main(String args[]) {

char a = 65;

char b = 66;

char d = 68;

d--;

char c = --b;

a++;

System.out.println(b);

System.out.println(d);

System.out.println(b);

System.out.println(a);

}

}

• A

  C

  A

  B

• B

  A

  B

  A

• B

  A

  C

  A

• A

  D

  A

  B

What will be the output of the following Java program?

class squareroot {

public static void main(String args[]) {

double a, b;

a = 3.0;

b = 4.0;

double c = Math.sqrt(a * a + b * b);

System.out.println(c); } }

• compilation error

• 25

• 7

• 5

Fill in the blanks

Every line of code that runs in java must be inside a ........

A ........... should always start with an uppercase first letter

Use the addition assignment operator to add the value 5 to the variable x.

int x = 10;

x ...... 5;