How to Convert String to Double in Java

Step-by-Step Guide

1. 1

   Step 1: Open the IDE.

   Open your IDE of choice, or use Command Prompt edit to write the code. ,, The output will be
   124899.99., You declare a String variable str with the value "124863.02".
   
   Next, you use the wrapper class for Double to parse the String value, assign it to a new Double variable num, and add
   36.97 to the assigned value.
   
   Then you print the new Double value of variable num as
   124899.99.
   
   You use the try-catch block to counter a NumberFormatException and print a corresponding error message.
2. 2

   Step 2: Copy and paste the following code: class Convert { public static void main(String[] args) { try { String str = "124863.02"; double num = (Double.parseDouble(str))+36.97; System.out.println(num); } catch(NumberFormatException e) { System.out.println("Invalid String for conversion to Double"); } } }

3. 3

   Step 3: Run the program.

4. 4

   Step 4: Understand what the program does.

Detailed Guide

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