![]() ![]() If the string passed to this constructor is not parsable to Double a NumberFormatException will be thrown. One of the constructor of the Double class accepts a String as a parameter and constructs an (Double) object that wraps the given value. Given String is not parsable to double Using the constructor of the Double class If the value given is not parsable to double this method throws a NumberFormatException. Similarly, the valueOf() method of the Double class (also) accepts a String value as a parameter, trims the excess spaces and returns the double value represented by the string. Given String is not parsable to double Using the valueOf() method ![]() ("Given String is not parsable to double") If an exception occurs this indicates that the given String is not pars able to double. ![]() The valueOf() method of Double wrapper class in Java, works similar to the parseDouble() method that. Therefore, to know whether a particular string is parse-able to double or not, pass it to the parseDouble method and wrap this line with try-catch block. Java Convert String to Double using Double.valueOf(String). If you pass a null value to this method, it throws a NullPointerException and if this method is not able to parse the given string into a double value you, it throws a NumberFormatException. We can use this method to convert a double type to a string object in Java. The parseDouble() method of the class accepts a String value, parses it, and returns the double value of the given String. Convert Double to String by Using the toString () Method in Java The Java Double wrapper class provides a toString () method that takes a double type argument and returns a string object. ![]()
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