Day2Competition

This has two operands.

• binary operators

• multiple operators

• unary operators

• None of these

These two operators can be binary or unary operators.

• * and %

• * and /

• + and -

• * and -

A string that contains no characters is called an empty or _______________string.

• undefined

• literal

• null

• none of these

The length of this string---"Ahoy mateys!"

• 11

• 12

• 13

• 14

All of the following are valid ways to initialize variable(s) except:

• int a=10;

• double a=10.5, b=11.6, c=12.7;

• int a=10;

  int b=a;

• int a=6-4+2*3;

• int a=10; int b=5;

  int a+b=11;

String x = "10";

String y = "20";

String z = x + y;

Guess the output.

• 1020

• 10 20

• 30

• "10 20"

Which one is correct?

• public static main(Strings[] args) { }

• public private static main(Strings[] args) { }

• public static void main(Strings[] args) { }

• public void static main(Strings[] args) { }

(=) sign means

• equals and it is used for math problems in Java

• assignment operator. It used to assign a value

Which one is used for remainder in Java?

• /

• %

• +

• *

This data type returns true or false

• String

• boolean

• char

• int