Practice›Java Fundamentals›Module 1. Values, Variables & Expressions›1.4 Arithmetic
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1.4 Arithmetic — the remainder operator %

Lesson

The remainder operator %

% gives the remainder after integer division — what is left over. 7 % 3 is 1 (because 7 = 2×3 + 1). It is handy for tests like even/odd: n % 2 is 0 for even numbers.


Worked example

System.out.println(7 % 3);   // 1
System.out.println(10 % 2);  // 0
System.out.println(9 % 5);   // 4

▶ Try it: run this, then change something and run it again.



What is 7 % 3?


Type exactly what this prints:

System.out.println(10 % 2);

What is 9 % 5?


Match each expression to its result.
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