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Conversion from String to Long in Java

Java conversion from String to Long: Here, we are going to learn how to convert a given string value to a long in Java?
Submitted by IncludeHelp, on July 16, 2019

Problem statement

Given a string and we have to convert it into a long.

Java conversion from String to Long

To convert a String to Long, we can use the following methods of Long class (see the syntax given below...)

Syntax

Long Long.valueOf(String).longValue();
OR
Long Long.parseLong(String);

Java program to convert a String to Long

//Java code to convert String to Long
public class Main {
    public static void main(String args[]) {
        String str = "1234587878";

        //variable to store result
        long result = 0;

        //converting string to long
        //method 1
        result = Long.valueOf(str).longValue();
        System.out.println("result (value of str as long) = " + result);

        //method 2
        result = Long.parseLong(str);
        System.out.println("result (value of str as long) = " + result);
    }
}

Output

result (value of str as long) = 1234587878
result (value of str as long) = 1234587878

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