BigInteger compareTo() Method in Java Last Updated : 12 May, 2022 Summarize Comments Improve Suggest changes Share Like Article Like Report The java.math.BigInteger.compareTo(BigInteger value) method Compares this BigInteger with the BigInteger passed as the parameter. Syntax: public int compareTo(BigInteger val)Parameter: This method accepts a single mandatory parameter val which is the BigInteger to compare with BigInteger object. Return Type: This method returns the following: 0: if the value of this BigInteger is equal to that of the BigInteger object passed as a parameter.1: if the value of this BigInteger is greater than that of the BigInteger object passed as a parameter.-1: if the value of this BigInteger is less than that of the BigInteger object passed as a parameter. Examples: Input: BigInteger1=2345, BigInteger2=7456 Output: -1 Explanation: BigInteger1.compareTo(BigInteger2)=-1. Input: BigInteger1=9834, BigInteger2=7456 Output: 1 Explanation: BigInteger1.compareTo(BigInteger2)=1. Example 1: Below programs illustrate the compareTo() method of BigInteger class when both BigIntegers are equal Java // Java program to demonstrate // compareTo() method of BigInteger import java.math.BigInteger; public class GFG { public static void main(String[] args) { // Creating 2 BigInteger objects BigInteger b1, b2; b1 = new BigInteger("321456"); b2 = new BigInteger("321456"); // apply compareTo() method int comparevalue = b1.compareTo(b2); // print result if (comparevalue == 0) { System.out.println("BigInteger1 " + b1 + " and BigInteger2 " + b2 + " are equal"); } } } Output:BigInteger1 321456 and BigInteger2 321456 are equal Example 2: when BigInteger1 is greater than BigInteger2 Java // Java program to demonstrate // compareTo() method of BigInteger import java.math.BigInteger; public class GFG { public static void main(String[] args) { // Creating 2 BigInteger objects BigInteger b1, b2; b1 = new BigInteger("654321"); b2 = new BigInteger("321456"); // apply compareTo() method int comparevalue = b1.compareTo(b2); // print result if (comparevalue == 1) { System.out.println("BigInteger1 " + b1 + " is greater than BigInteger2 " + b2); } } } Output:BigInteger1 654321 is greater than BigInteger2 321456 Example 3: When BigInteger1 is lesser than BigInteger2 Java // Java program to demonstrate // compareTo() method of BigInteger import java.math.BigInteger; public class GFG { public static void main(String[] args) { // Creating 2 BigInteger objects BigInteger b1, b2; b1 = new BigInteger("321456"); b2 = new BigInteger("564321"); // apply compareTo() method int comparevalue = b1.compareTo(b2); // print result if(comparevalue == -1) { System.out.println("BigInteger1 " + b1 + " is lesser than BigInteger2 " + b2); } } } Output:BigInteger1 321456 is lesser than BigInteger2 564321 Comment More infoAdvertise with us Next Article BigInteger compareTo() Method in Java A AmanSingh2210 Follow Improve Article Tags : Java Java-Functions java-math Java-BigInteger Java-math-package +1 More Practice Tags : JavaJava-BigInteger Similar Reads Java Tutorial Java is a high-level, object-oriented programming language used to build web apps, mobile applications, and enterprise software systems. It is known for its Write Once, Run Anywhere capability, which means code written in Java can run on any device that supports the Java Virtual Machine (JVM).Java s 10 min read Java OOP(Object Oriented Programming) Concepts Java Object-Oriented Programming (OOPs) is a fundamental concept in Java that every developer must understand. It allows developers to structure code using classes and objects, making it more modular, reusable, and scalable.The core idea of OOPs is to bind data and the functions that operate on it, 13 min read Java Interview Questions and Answers Java is one of the most popular programming languages in the world, known for its versatility, portability, and wide range of applications. Java is the most used language in top companies such as Uber, Airbnb, Google, Netflix, Instagram, Spotify, Amazon, and many more because of its features and per 15+ min read Arrays in Java Arrays in Java are one of the most fundamental data structures that allow us to store multiple values of the same type in a single variable. They are useful for storing and managing collections of data. Arrays in Java are objects, which makes them work differently from arrays in C/C++ in terms of me 15+ min read Collections in Java Any group of individual objects that are represented as a single unit is known as a Java Collection of Objects. In Java, a separate framework named the "Collection Framework" has been defined in JDK 1.2 which holds all the Java Collection Classes and Interface in it. In Java, the Collection interfac 15+ min read Inheritance in Java Java Inheritance is a fundamental concept in OOP(Object-Oriented Programming). It is the mechanism in Java by which one class is allowed to inherit the features(fields and methods) of another class. In Java, Inheritance means creating new classes based on existing ones. A class that inherits from an 13 min read Java Exception Handling Exception handling in Java allows developers to manage runtime errors effectively by using mechanisms like try-catch block, finally block, throwing Exceptions, Custom Exception handling, etc. An Exception is an unwanted or unexpected event that occurs during the execution of a program, i.e., at runt 10 min read Java Programs - Java Programming Examples In this article, we will learn and prepare for Interviews using Java Programming Examples. From basic Java programs like the Fibonacci series, Prime numbers, Factorial numbers, and Palindrome numbers to advanced Java programs.Java is one of the most popular programming languages today because of its 8 min read Java Interface An Interface in Java programming language is defined as an abstract type used to specify the behaviour of a class. An interface in Java is a blueprint of a behaviour. A Java interface contains static constants and abstract methods. Key Properties of Interface:The interface in Java is a mechanism to 12 min read Introduction to Java Java is a high-level, object-oriented programming language developed by Sun Microsystems in 1995. It is platform-independent, which means we can write code once and run it anywhere using the Java Virtual Machine (JVM). Java is mostly used for building desktop applications, web applications, Android 4 min read Like