Java: Append two strings; remove characters from the beginning of longer string if the lengths of the string are different

Java String: Exercise-60 with Solution

Write a Java program to read two strings append them together and return the result. If the strings are different lengths, remove characters from the beginning of the longer string and make them equal lengths.

Visual Presentation:

Sample Solution:

Java Code:

import java.util.*;

// Define a class named Main
public class Main {
    
    // Method to concatenate two strings while ensuring the minimum length
    public String minCat(String st1, String st2) {
        // Check if the lengths of the strings are equal
        if (st1.length() == st2.length())
            return st1 + st2; // If equal, concatenate the strings directly
        
        // Check if the length of the first string is greater than the length of the second string
        if (st1.length() > st2.length()) {
            int diff = st1.length() - st2.length(); // Calculate the length difference
            return st1.substring(diff, st1.length()) + st2; // Concatenate with adjusted lengths
        } else {
            int diff = st2.length() - st1.length(); // Calculate the length difference
            return st1 + st2.substring(diff, st2.length()); // Concatenate with adjusted lengths
        }
    }

    // Main method to execute the program
    public static void main(String[] args) {
        Main m = new Main(); // Create an instance of the Main class

        String str1 = "Welcome"; // First string
        String str2 = "home";    // Second string
        
        // Display the given strings and the new concatenated string using the minCat method
        System.out.println("The given strings are: " + str1 + " and " + str2);
        System.out.println("The new string is: " + m.minCat(str1, str2));
    }
}

Sample Output:

The given strings is: Welcome and home
The new string is: comehome

Flowchart:

Java Code Editor:

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