Operators and Control Statements

1. Which of the following can be operands of arithmetic operators?

• Numeric
• Boolean
• Characters
• Both Numeric & Characters

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

• Integers
• Floating – point numbers
• Both Integers and floating – point numbers
• None of the mentioned

3. 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 & 2

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

• 1
• 2
• 3
• 4

5. 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?

Online Java Compiler - Google Chrome (gyazo.com)

• 1 1

• 0 1

• 1.5 1

• 1.5 1.0

What will be the output of the following Java program?

Online Java Compiler - Google Chrome (gyazo.com)

• 5.640000000000001 5

• 5.640000000000001 5.0

• 5 5.640000000000001

What will be the output of the following Java program?

Online Java Compiler - Google Chrome (gyazo.com)

• 25

• 24

• 32

• 33

Can 8 byte long data type be automatically type cast to 4 byte float data type?

• True
• False

What will be the output of the following Java program?

Online Java Compiler - Google Chrome (gyazo.com)

• 3 2 4

• 3 2 3

• 2 3 4

• 3 4 4