Last Updated : 11 Jul, 2025
The compare() method of Double Class is a built-in method in Java that compares the two specified double values. The sign of the integer value returned is the same as that of the integer that would be returned by the function call.
Syntax:
public static int compare(double d1, double d2)
Parameters: The function accepts two parameters:
Return Value: The function returns value as below:
Below programs illustrates the use of Double.compare() function:
Program 1: When two integers are same
Java
// Java Program to illustrate
// the Double.compare() method
import java.lang.Double;
public class GFG {
public static void main(String[] args)
{
// Get the two double values
// to be compared
Double d1 = 1023d;
Double d2 = 1023d;
// function call to compare two double values
if (Double.compare(d1, d2) == 0) {
System.out.println("d1=d2");
}
else if (Double.compare(d1, d2) < 0) {
System.out.println("d1<d2");
}
else {
System.out.println("d1>d2");
}
}
}
Program 2 : When d1<d2
Java
// Java Program to illustrate
// the Double.compare() method
import java.lang.Double;
public class GFG {
public static void main(String[] args)
{
// Get the two double values
// to be compared
Double d1 = 10d;
Double d2 = 1023d;
// function call to compare two double values
if (Double.compare(d1, d2) == 0) {
System.out.println("d1=d2");
}
else if (Double.compare(d1, d2) < 0) {
System.out.println("d1<d2");
}
else {
System.out.println("d1>d2");
}
}
}
Program 3 : When d1>d2
Java
// Java Program to illustrate
// the Double.compare() method
import java.lang.Double;
public class GFG {
public static void main(String[] args)
{
// Get the two double values
// to be compared
Double d1 = 1023d;
Double d2 = 10d;
// function call to compare two double values
if (Double.compare(d1, d2) == 0) {
System.out.println("d1=d2");
}
else if (Double.compare(d1, d2) < 0) {
System.out.println("d1<d2");
}
else {
System.out.println("d1>d2");
}
}
}
Reference: https://docs.oracle.com/javase/7/docs/api/java/lang/Double.html#compare(double, %20double)
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