JAVA operators

Modulus operator, %, can be applied to which of these?

• Integers

• Floating – point numbers

• Both Integers and floating – point numbers

• None

Which of the following can be operands of arithmetic operators?

• Numeric

• Boolean

• Characters

• Both Numeric & Characters

With x = 0, which of the following are legal lines of Java code for changing the value of x to 1?

1. x++;

2. x = x + 1;

3. x += 1;

4. x =+ 1;

• 1, 2 & 3

• 1 & 4

• 1, 2, 3 & 4

• 3&4

Decrement operator, −−, decreases the value of variable by what number?

• 1

• 2

• 3

• 4

Which of these statements are incorrect?

• Assignment operators are more efficiently implemented by Java run-time system than their equivalent long forms

• Assignment operators run faster than their equivalent long forms

• Assignment operators can be used only with numeric and character data type

• None of the mentioned

What will be the output of the following Java program?

class increment

{

public static void main(String args[])

{

double var1 = 1 + 5;

double var2 = var1 / 4;

int var3 = 1 + 5;

int var4 = var3 / 4;

System.out.print(var2 + " " + var4);

 

}

}

• 1 0

• 1 1.5

• 1.5 1

• 0 1

Which of these is not a bitwise operator?

• &

• &=

• |=

• <=

Which operator is used to invert all the digits in a binary representation of a number?

• ~

• <

• <<<<

• >>>

What is the output of relational operators?

• Integer

• Boolean

• Floating

• Double

Which of these has highest precedence?

• ()

• +

• ++

• *