Java Convert String to double

In Java, you can convert a String to a double using the Double.parseDouble() method. Here’s an example:

String str = "3.14";
double d = Double.parseDouble(str);
System.out.println(d); // prints 3.14

In this example, the String "3.14" is converted to a double value and stored in the variable d. Note that if the String cannot be parsed as a double, a NumberFormatException will be thrown, so you should handle this exception appropriately in your code.

Java String to double Example:

Sure, here’s an example code that demonstrates how to convert a String to a double in Java:

public class StringToDoubleExample {
    public static void main(String[] args) {
        String str = "3.14";
        double d = Double.parseDouble(str);
        System.out.println("String value: " + str);
        System.out.println("Double value: " + d);
    }
}

In this example, we have a String "3.14" which we want to convert to a double. We use the Double.parseDouble() method to do the conversion and store the result in the d variable. We then print out both the original String value and the converted double value using the System.out.println() method.

When you run this program, the output will be:

String value: 3.14
Double value: 3.14

As you can see, the String "3.14" has been successfully converted to a double value of 3.14.