Java Convert double to BigDecimal

Tags: double BigDecimal

In this Java core tutorial we learn how to convert a double value to a java.math.BigDecimal object in Java programming language.

How to convert double to BigDecimal in Java

In Java, with a given double value we can use the BigDecimal.valueOf(double val) static method to instantiate a new BigDecimal object from a double value as the following example Java code.

ConvertDoubleToBigDecimalExample1.java 

import java.math.BigDecimal;

public class ConvertDoubleToBigDecimalExample1 {
    public static void main(String... args) {
        double doubleValue = 200500.456;

        // Convert double value to BigDecimal object
        BigDecimal bigDecimalValue = BigDecimal.valueOf(doubleValue);

        System.out.println("Double value: " + doubleValue);
        System.out.println("BigDecimal value: " + bigDecimalValue);
    }
}
The output as below. 
Double value: 200500.456
BigDecimal value: 200500.456

Or we can use the BigDecimal(double val) constructor to create a new instance of BigDecimal from a given double value as the Java program below.

ConvertDoubleToBigDecimalExample2.java 

import java.math.BigDecimal;

public class ConvertDoubleToBigDecimalExample2 {
    public static void main(String... args) {
        double doubleValue = 200500.456;

        // Convert double value to BigDecimal object
        BigDecimal bigDecimalValue = new BigDecimal(doubleValue);

        System.out.println("Double value: " + doubleValue);
        System.out.println("BigDecimal value: " + bigDecimalValue);
    }
}
The output as below. 
Double value: 200500.456
BigDecimal value: 200500.45600000000558793544769287109375

Happy Coding 😊

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