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Double parseDouble() method in Java with examples

Last Updated : 11 Jul, 2025
The parseDouble() method of Java Double class is a built in method in Java that returns a new double initialized to the value represented by the specified String, as done by the valueOf method of class Double. Syntax:
public static double parseDouble(String s)
Parameters: It accepts a single mandatory parameter s which specifies the string to be parsed. Return type: It returns e double value represented by the string argument. Exception: The function throws two exceptions which are described below:
  • NullPointerException- when the string parsed is null
  • NumberFormatException- when the string parsed does not contain a parsable float
Below is the implementation of the above method. Program 1:
Output:
Value = 100.0
Program 2: To show NumberFormatException
Output:
Exception: java.lang.NumberFormatException: empty String
Program 3: To show NullPointerException
Output:
Exception: java.lang.NullPointerException
Reference: https://docs.oracle.com/javase/7/docs/api/java/lang/Double.html#parseDouble(java.lang.String)
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