Java - Double Class parseDouble() Method

Double class parseDouble() method: Here, we are going to learn about the parseDouble() method of Double class with its syntax and example. By Preeti Jain Last updated : March 23, 2024

Double class parseDouble() method

parseDouble() method is available in Double class of java.lang package.
parseDouble() method is used to return the double value corresponding to the given String or in other words we can say this method is used to convert a string value to double value.
parseDouble() method is a static method, it is accessible with the class name too and if we try to access the method with the class object then also we will not get an error.
parseDouble() method may throw a NumberFormatException at the time of conversion from string double,
NumberFormatException: In this exception, when the string argument does not have parsable double.

Syntax

public static double parseDouble(String str);

Parameters

String str – represents the string value to be parsed.

Return Value

The return type of this method is double, it returns the corresponding double value.

Example

// Java program to demonstrate the example 
// of parseDouble(String str) method of Double class

public class ParseDoubleOfDoubleClass {
    public static void main(String[] args) {

        // Variables initialization
        String str1 = "100";
        String str2 = "6.7";

        // Object initialization
        Double d1 = new Double(str2);

        // It convert string into double by calling parseDouble() method
        // and store the result in another variable of double type
        double result = d1.parseDouble(str1);

        // Display result
        System.out.println("d1.parseDouble(str1): " + result);
    }
}

Output

d1.parseDouble(str1): 100.0

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