Java - get last n characters from string

In this article, we would like to show you how to get the last n characters from a string in Java.

Quick solution: 

String text = "1234";
int n = 2;
String lastCharacters = text.substring(text.length() - n);

System.out.println(lastCharacters);  // 34

Practical example

The below example shows how to use substring() method to get the last n characters from the text string.

StringUtils.java file:

public class StringUtils {

    public static String getLastCharacters(String text, int charactersCount) {
        int length = text.length();
        int offset = Math.max(0, length - charactersCount);
        return text.substring(offset);
    }

    public static void main(String[] args) {

        System.out.println( getLastCharacters( "1234", 3) );  // 234
        System.out.println( getLastCharacters( "1234", 2) );  // 34
        System.out.println( getLastCharacters(   "12", 2) );  // 12
        System.out.println( getLastCharacters(    "1", 2) );  // 1
        System.out.println( getLastCharacters(     "", 2) );  //
    }
}

Output:

234
34
12
1