You can parse a String literal containing valid long value into a long primitive type using parseLong() and valueOf() method of java.lan How To Activate Cheats In Europa Universalis 3 there. g.Long class of JDK. Though there are couple of difference between valueOf() and parseLong() method e.g. ValueOf() method return a Long object while parseLong() method return a Long object, but given we have autoboxing in Java, both method can used for parsing String to create long values. In the, you have learned how to convert a Long value to String in Java and in this tutorial, you will learn opposite, i.e. How to parse a String to a long value in Java. As I said, there are the couple of ways to do it, but the most important method is parseLong().

This method is responsible for parsing input String and creating primitive long value corresponding to input String. It does input validation and throws NumberFormatException if you pass String which is not valid long value e.g. Alphanumeric String, String containing characters other than +, - and numbers, long values which are out of range, lonely + or - character etc.

You can also use the constructor of Long class which accepts a String and returns a Long object, but internally it also uses parseLong() method. BTW, if you have just started learning Java or looking forward to learning Java from scratch, I suggest you take a look at Cay S. Horstmann's book. You will learn most of Java fundamentals in quick time. Three ways to convert String to long in Java There are three main ways to convert a numeric String to Long in Java, though internally all of them uses parseLong() method to parse numeric String to Long value. • By using Long.parseLong() method • By using Long.valueOf() method • By using new Long(String value) constructor Minor is that former return a primitive long value while later return a Long object. Since Long. Comment Installer Wpe Pro 9. valueOf() is also used in autoboxing to convert primitive long to Long object, it also maintains a cache of Long object from -128 to 127.