Java String to long

To convert a Java String to a long, you can use the Long.parseLong() method. Here’s an example:

String numberString = "123456789";
long number = Long.parseLong(numberString);

In this example, the numberString variable contains the string “123456789”. The Long.parseLong() method is then used to parse this string and convert it to a long, which is assigned to the number variable.

Note that Long.parseLong() can throw a NumberFormatException if the string cannot be parsed as a valid long. Therefore, you should always wrap the call to Long.parseLong() in a try-catch block to handle this possibility.

Java String to long Example:

Sure, here’s an example of converting a Java String to a long using the Long.parseLong() method:

public class StringToLongExample {
    public static void main(String[] args) {
        String numberString = "123456789";
        long number = Long.parseLong(numberString);
        System.out.println(number); // Output: 123456789
    }
}

In this example, we create a String variable called numberString and assign it the value "123456789". We then use the Long.parseLong() method to convert this string to a long and assign it to the number variable. Finally, we print the value of number to the console using the System.out.println() method.

When you run this code, the output will be 123456789, which is the long value that corresponds to the "123456789" string.