Variables and Loops Review

The ++ operator is used in a for statement to automatically increment a counter by 2 during each loop iteration.

• True
• False

Which String class method returns true if the string length is 0?

• length()
• isEmpty()
• trim()
• substring()

Which String class method returns a copy of the string with all leading and trailing spaces removed?

• length()
• substring()
• trim()
• toLowerCase()

Which is used to signify that a loop should stop iterating?

• accumulator
• counter
• Boolean value
• sentinel

Which keyword does a constant declaration begins with?

• import
• constant
• int
• final

Which Scanner class method is used to return a string that does not contain spaces from the input stream?

• nextBoolean()
• nextInt()
• nextLine()
• next()

Which data type is most appropriate for whether an employee qualifies for a bonus?

• int
• double
• boolean
• char

Which data type declares a variable that stores a positive or negative whole number?

• int
• double
• char
• boolean

Which operator is used to assign a new value to a variable?

• =
• ==
• +
• -

The compareTo() method of the String class considers uppercase and lowercase letters the same.

• True
• False