Java: Check for a number at the end of a string

Last update on May 24 2025 12:59:36 (UTC/GMT +8 hours)

11. Check Number at End of String

Write a Java program to check for a number at the end of a string.

Sample Solution:

Java Code:

import java.util.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class test {
 
   public static void main(String[] args) {
	   
	    System.out.println(validate("abcdef"));
		System.out.println(validate("3abcdef"));
        System.out.println(validate("abcdef9"));
		System.out.println(validate("abcdef3459"));
        }

   public static String validate(String text) {
	    Pattern pattern = Pattern.compile(".*[0-9]$");
		Matcher m = pattern.matcher(text);
		
	    if (m.find())
            return "Found a match!";
        else
            return "Not matched!";
   }
}

Sample Output:

Not matched!
Not matched!
Found a match!
Found a match!

Pictorial Presentation:

Flowchart :

For more Practice: Solve these Related Problems:

• Write a Java program to verify that a string ends with one or more digits using a regex pattern.
• Write a Java program to extract the numeric substring at the end of a string and return it as an integer.
• Write a Java program to implement a method that checks for the presence of a trailing number in a given string.
• Write a Java program to validate input strings and flag those that do not terminate with a number.

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