Double parseDouble() method in Java with examples Last Updated : 11 Jul, 2025 Comments Improve Suggest changes Like Article Like Report 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: Java // Java Code to implement // parseDouble() method of Double class class GFG { // Driver method public static void main(String[] args) { String str = "100"; // returns the double value // represented by the string argument double val = Double.parseDouble(str); // prints the double value System.out.println("Value = " + val); } } Output: Value = 100.0 Program 2: To show NumberFormatException Java // Java Code to implement // parseDouble() method of Double class class GFG { // Driver method public static void main(String[] args) { try { String str = ""; // returns the double value // represented by the string argument double val = Double.parseDouble(str); // prints the double value System.out.println("Value = " + val); } catch (Exception e) { System.out.println("Exception: " + e); } } } Output: Exception: java.lang.NumberFormatException: empty String Program 3: To show NullPointerException Java // Java Code to implement // parseDouble() method of Double class class GFG { // Driver method public static void main(String[] args) { try { String str = null; // returns the double value // represented by the string argument double val = Double.parseDouble(str); // prints the double value System.out.println("Value = " + val); } catch (Exception e) { System.out.println("Exception: " + e); } } } Output: Exception: java.lang.NullPointerException Reference: https://docs.oracle.com/javase/7/docs/api/java/lang/Double.html#parseDouble(java.lang.String) Comment More infoAdvertise with us G gopaldave Follow Improve Article Tags : Java java-basics Java-lang package Java-Functions Java-Double +1 More Practice Tags : Java Explore BasicsIntroduction to Java4 min readJava Programming Basics9 min readJava Methods7 min readAccess Modifiers in Java6 min readArrays in Java9 min readJava Strings8 min readRegular Expressions in Java7 min readOOPs & InterfacesClasses and Objects in Java10 min readJava Constructors10 min readJava OOP(Object Oriented Programming) Concepts10 min readJava Packages7 min readJava Interface11 min readCollectionsCollections in Java12 min readCollections Class in Java13 min readCollection Interface in Java6 min readIterator in Java5 min readJava Comparator Interface6 min readException HandlingJava Exception Handling8 min readJava Try Catch Block4 min readJava final, finally and finalize4 min readChained Exceptions in Java3 min readNull Pointer Exception in Java5 min readException Handling with Method Overriding in Java4 min readJava AdvancedJava Multithreading Tutorial15+ min readSynchronization in Java10 min readFile Handling in Java5 min readJava Method References9 min readJava 8 Stream Tutorial15+ min readJava Networking15+ min readJDBC Tutorial12 min readJava Memory Management4 min readGarbage Collection in Java6 min readMemory Leaks in Java3 min readPractice JavaJava Interview Questions and Answers15+ min readJava Programs - Java Programming Examples8 min readJava Exercises - Basic to Advanced Java Practice Programs with Solutions7 min readJava Quiz | Level Up Your Java Skills1 min readTop 50 Java Project Ideas For Beginners and Advanced [Update 2025]15+ min read Like