Instead of the modulo operator, which has slightly different semantics, for non-negative integers, you can use the remainder operator %. For your exact example:
if ((a % 2) == 0)
{
isEven = true;
}
else
{
isEven = false;
}
This can be simplified to a one-liner:
isEven = (a % 2) == 0;
Baeldung
baeldung.com › home › java › core java › the modulo operator in java
The Modulo Operator in Java | Baeldung
September 3, 2025 - Using the modulo operator, we prevent writeIndex from falling out of the boundaries of the array; therefore, we’ll never get an ArrayIndexOutOfBoundsException. However, once we insert more than QUEUE_CAPACITY items, the next item will overwrite the first. In cases where the dividend is negative, Java returns a negative remainder:
Top answer 1 of 16
387
Instead of the modulo operator, which has slightly different semantics, for non-negative integers, you can use the remainder operator %. For your exact example:
if ((a % 2) == 0)
{
isEven = true;
}
else
{
isEven = false;
}
This can be simplified to a one-liner:
isEven = (a % 2) == 0;
2 of 16
111
Here is the representation of your pseudo-code in minimal Java code;
boolean isEven = a % 2 == 0;
I'll now break it down into its components. The modulus operator in Java is the percent character (%). Therefore taking an int % int returns another int. The double equals (==) operator is used to compare values, such as a pair of ints and returns a boolean. This is then assigned to the boolean variable 'isEven'. Based on operator precedence the modulus will be evaluated before the comparison.
Videos
W3Schools
w3schools.com › java › java_operators_arithmetic.asp
Java Arithmetic Operators
Java Examples Java Videos Java Compiler Java Exercises Java Quiz Java Code Challenges Java Server Java Syllabus Java Study Plan Java Interview Q&A Java Certificate ... Arithmetic operators are used to perform common mathematical operations.
Edureka
edureka.co › blog › mod-method-in-java
Modulus in Java | Remainder or Modulus Operator in Java | Edureka
July 5, 2024 - Modulus in Java is an Operator. % is also known as the modulus or remainder operator. The % operator returns the remainder of two numbers
W3Schools
w3schools.com › java › java_operators.asp
Java Operators
Java Examples Java Videos Java Compiler Java Exercises Java Quiz Java Code Challenges Java Server Java Syllabus Java Study Plan Java Interview Q&A Java Certificate ... Operators are used to perform operations on variables and values.
Joshuatreemusicfestival
joshuatreemusicfestival.com › wjfnj › modulus-operator-in-java-w3schools.html
modulus operator in java w3schools
Sign In Sign Up W3schools The Modulus Operator helps us to get the remainder of a mathematical division operation. A unary operation is an operation with only one operand. Operands can be a variable or a constant. But you can use them on the characters' because, in Java .
Runestone Academy
runestone.academy › ns › books › published › apcsareview › VariableBasics › operators.html
3.5. Operators — AP CSA Java Review - Obsolete
When Java sees you doing integer ... operator (%) is the modulo or remainder operator. The modulo operator (x % y) returns the remainder after you divide x (first number) by y (second number) so 5 % 2 will return 1 since 2 goes into 5 two times with a remainder of ...
Top answer 1 of 2
1
number % 2 is an expression that can't be evaluated to a boolean by any means.
15.17.3. Remainder Operator %
The binary % operator is said to yield the remainder of its operands from an implied division; the left-hand operand is the dividend and the right-hand operand is the divisor.
https://docs.oracle.com/javase/specs/jls/se12/html/jls-15.html#jls-15.17.3
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0
The modulus operator returns an int, in this case but it could return a double or long depending on the operands. An if statement requires a boolean. So the reason why you can't do if(number % 2) is because there is no boolean. With if(number % 2 == 0) you are checking if the result of the modulo operator is zero, which is a boolean.
Java67
java67.com › 2014 › 11 › modulo-or-remainder-operator-in-java.html
How to use Modulo , Modulus, or Remainder Operator in Java? [Example] | Java67
What is mod here? are you using remainder operator in Java. do you mean 39.03/9 ?ReplyDelete ... Technically (n % m) is a remainder operator, but not a modulus operator. There's a difference. For nonnegative n and positive m, the remainder and modulus are the same thing.
IONOS
ionos.com › digital guide › websites › web development › java modulo
How to use the Java modulo operator - IONOS
December 18, 2024 - The Java modulo operator allows you to easily determine the remainder from a division operation. We show you how the operator works using examples.
Cafeaulait
cafeaulait.org › course › week2 › 15.html
The Remainder or Modulus Operator in Java
Java has one important arithmetical operator you may not be familiar with, %, also known as the modulus or remainder operator. The % operator returns the remainder of two numbers. For instance 10 % 3 is 1 because 10 divided by 3 leaves a remainder of 1.
GeeksforGeeks
geeksforgeeks.org › java › modulo-or-remainder-operator-in-java
Modulo or Remainder Operator in Java - GeeksforGeeks
January 27, 2021 - Explanation: Java allows % with floating-point values, though results may show precision issues due to binary representation. ... Division by zero (a % 0) throws an ArithmeticException. ... Modulo is not a percentage operator.
Xperti
xperti.io › home › how to use modulo, modulus, or remainder operator in java?
How To Use Mod Operator In Java
August 17, 2022 - Another good use of the mod operator is to keep a record of the index of the next available element in a circular queue. In the simplest implementation of a circular queue for integer values, all the values are kept in a fixed-size array but it is accessed in circular order. When we enqueue an element into the circular queue, the next available position also has to be calculated right away. The next available position is then calculated by the modulus of the number of items + 1 with the queue total capacity.
Greenteapress
greenteapress.com › thinkjava5 › html › thinkjava006.html
Conditionals and recursion
The modulus operator works on integers (and integer expressions) and yields the remainder when the first operand is divided by the second. In Java, the modulus operator is a percent sign, %. The syntax is the same as for other operators: · The first operator, integer division, yields 2. The ...
GeeksforGeeks
geeksforgeeks.org › computer science fundamentals › modulus-operator-in-programming
Modulus Operator in Programming - GeeksforGeeks
March 26, 2024 - ... The modulus operator, denoted by the symbol "%", is a mathematical operation that calculates the remainder of the division between two numbers. It returns the remainder left over after dividing the first operand by the second operand.
NareshIT
nareshit.com › blogs › what-is-modulus-in-java-and-how-does-it-work
What is Modulus in Java? Understanding Modulus Operator in Java
You will find a question related to it in your interview for C, C++, Python, or Java always. In this artifact, we will discuss the modulus and then will implement it through a program in Java. The topics we will cover in this article are what a modulus operator is, its syntax, and an example of the Modulus.
Coderanch
coderanch.com › t › 785725 › java › Modulus-Operator
Modulus Operator (Java in General forum at Coderanch)
Hello, and welcome to the Ranch! That's more of a maths question than a programming question, but let's do it anyway. As you know from your topic title, the % symbol in Java (and many other languages) represents the mathematical Modulo Operation, sometimes called modulus or mod.
Medium
medium.com › @AlexanderObregon › what-is-javas-modulo-and-how-to-use-it-10e8e464d974
What Is Java’s Modulo (%) and How to Use It | Medium
April 1, 2025 - In each case, Java takes the left-hand side, divides it by the right-hand side, truncates the quotient toward zero, then subtracts the product of that quotient and the divisor from the original number. You’ll get results that look like they “fit” in the same general range as the divisor, but they’re not always positive. Again, the result sticks to the sign of the left-hand operand.
Studytonight
studytonight.com › java-examples › modulo-operator-in-java
Modulo Operator in Java - Studytonight
This tutorial explains the modulo operator or the remainder operator in Java and discusses some of its important applications and use cases.