Variables and Expressions

Process of assigning value to a variable before it is being used is called:

• Initialization

• Operation

• Realization

int k1, k2 = 23 is an example of:

• Adding values in a function

• Variable declaration

• None of them

Which of the following is NOT a correct variable name?

• 2bad

• Zero

• theLastValueButOne

• Year2000

Which of the following declarations is NOT correct?

• Double duty;

• Float loan = 12.3;

• Boolean value = 21;

• Int start = 45, end = 99;

Which of the following shows the syntax of an assignment statement?

• VariableName = expression;

• Expression = expression;

• Expression = VariableName;

• datatype = VariableName;

What is an expression?

• The same thing as a statement

• An expression is a list of statements that make up a program

• An expression is a combination of literals, operators, variables, and parentheses used to calculate a value

• An expression is a number expressed in digits.

What is the value of the following expression? (2 - 6) / 2 + 9

• 7

• 8

• 9

• 10