Java.lang.Long.valueOf() method with examples
Java.lang.Long.valueOf() is a built-in method in Java of lang class that returns a Long object holding the value extracted from a specified String S when parsed with the radix that is given in the second argument. The first argument is interpreted as representing a signed long in the radix specified by the second argument, exactly as if the arguments were given to the parseLong(java.lang.String, int) method. It returns a result that is a Long object that represents the long value specified by the string.
Attention reader! Don’t stop learning now. Get hold of all the important Java Foundation and Collections concepts with the Fundamentals of Java and Java Collections Course at a student-friendly price and become industry ready. To complete your preparation from learning a language to DS Algo and many more, please refer Complete Interview Preparation Course.
public static Long valueOf(String s, int radix) throws NumberFormatException
Parameters: The method accepts two mandatory parameters:
- S: This refers to the string which is to be parsed.
- radix: This refers to the radix which is to be used in interpreting the string S.
Return type: The built-in method returns a Long object holding the value represented by the string argument in the specified radix.
Errors and Exception:
- NumberFormatException: If the number does not contain a parsable long the program returns.
Below programs illustrate the Java.lang.Long.valueOf() method.
Long instance Value = 45325
Exception in thread "main" java.lang.NumberFormatException: For input string: "gopal" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) at java.lang.Long.parseLong(Long.java:589) at java.lang.Long.valueOf(Long.java:776) at Gfg1.main(File.java:15)