Java Operators

Which of the following is NOT a data types in java

• int

• String

• number

• double

What is right way of defining String variable?

• String name = "John";

• String name = "John"

• String name = John;

• String name "John";

float myFloatNum = 5.99f;

System.out.println(myFloatNum);

What will be the output?

• 5.99

• 5.99f

• "5.99"

• "5.99"f

int x = 5;

int y = 6

int z = 50;

System.out.println(x + y + z);

What will be the output?

• 61

• 5650

• 66

• x + y + z

Based on, the general rules for constructing names for variables.

Pick false statement.

• Names can contain letters, digits, underscores, and dollar signs.

• Names are NOT case sensitive

• Reserved words (like Java keywords, such as int or String) cannot be used as names

• Names can also begin with $ and _

Which of the following is NOT a NON-primitive data type

• String

• Array

• double

• class

which of the following is NOT a primitive data type?

• byte

• array

• char

• boolean

Which of the following is the right way of defining char variable?

• char myGrade = 'B';

• char myGrade = "B";

• char myGrade 'B';

• char myGrade = "B"

int sum1 = 100 + 50;

int sum2 = sum1 + 250;

int sum3 = sum2 + sum2;

System.out.println(sum3);

What will be the final output?

• 950

• 800

• sum2sum2

• sum1250

Which of the following is assignment operator?

• ==

• =

• =+

• ++