Relational operators in Java - Cheat Sheet & Quick Revision

Recall & Review

beginner

What are relational operators in Java?

Relational operators compare two values and return a boolean result: true or false. They help decide if one value is greater, smaller, equal, or not equal to another.

beginner

List the six main relational operators in Java.

The six main relational operators are: < (less than), > (greater than), <= (less than or equal to), >= (greater than or equal to), == (equal to), != (not equal to).

beginner

What is the result type of a relational operator expression in Java?

The result is always a boolean value: either true or false.

beginner

Explain the difference between == and = in Java.

== is a relational operator that checks if two values are equal. = is an assignment operator that sets a value to a variable.

beginner

What will be the output of this code snippet? int a = 5, b = 10; System.out.println(a > b);

The output will be false because 5 is not greater than 10.

Which operator checks if two values are NOT equal in Java?

A <=

B ==

C !=

D =

!= means not equal, so it returns true if values differ.

What is the result type of the expression (5 < 10)?

A boolean

B int

C String

D double

Relational operators always return a boolean value: true or false.

Which operator would you use to check if a number is greater than or equal to another?

A <=

B >=

C ==

D !=

>= means greater than or equal to.

What does the expression (a == b) check?

A If a is equal to b

B If a is not equal to b

C If a is greater than b

D If a is assigned b

== checks if two values are equal.

Which of these is NOT a relational operator in Java?

A >=

B !=

C <

D &&

&& is a logical AND operator, not a relational operator.

Explain what relational operators do in Java and give examples.

Think about how you compare numbers or values in daily life.

Describe the difference between == and = in Java and why confusing them can cause errors.

One is for comparison, the other for setting values.