java.lang.Long decode(String nm)
Description
The Long.decode(String nm) java method decodes a String into a Long. Accepts decimal, hexadecimal, and octal numbers given by the following grammar:
DecodableString:
Signopt DecimalNumeral
Signopt 0x HexDigits
Signopt 0X HexDigits
Signopt # HexDigits
Signopt 0 OctalDigits
Sign:
–
+
Make a note that the decode() method of Long class is static thus it should be accessed statically which means the we would be calling this method in this format:
Long.decode(method args)
Non static method is usually called by just declaring method_name(argument) however in this case since the method is static, it should be called by appending the class name as suffix. We will be encountering a compilation problem if we call the java decode method non statically.
Notes:
- this method throws NumberFormatException, if the String does not contain a parsable long.
Method Syntax
public static Long decode(String nm) throws NumberFormatException
Method Argument
| Data Type | Parameter | Description |
|---|---|---|
| String | nm | the String to decode. |
Method Returns
The decode(String nm) method of Long class returns a Long object holding the long value represented by nm
Compatibility
Requires Java 1.2 and up
Java Long decode() Example
Below is a simple java example on the usage of decode() method of Long class.
package com.javatutorialhq.java.examples;
import java.util.Scanner;
/*
* This example source code demonstrates the use of
* decode(String nm) method of Long class
*/
public class LongDecodeExample {
public static void main(String[] args) {
// Ask for user input
System.out.print("Enter a value:");
// declare a scanner object to read the user input
Scanner s = new Scanner(System.in);
// assign the input to a variable
String value = s.nextLine();
// get the decode() method result
Long result = Long.decode(value);
// print the result
System.out.println("Result:" + result);
// close the scanner object
s.close();
/*
* Format available
* 0x HexDigits
* 0X HexDigits
* # HexDigits
* 0 OctalDigits
*/
}
}
Sample Output
Below is the sample output when you run the above example.
