Scala Programming: Append two strings, remove characters from the beginning of longer string if the lengths of the string are different

Scala Programming String Exercise-22 with Solution

Write a Scala program to read two strings append them together and return the result. If the length of the strings is different remove characters from the beginning of longer string and make them equal length.

Sample Solution:

Scala Code:

object Scala_String {

  def test(str1: String, str2: String): String = {
    if (str1.length == str2.length)
      return str1 + str2;
    if (str1.length > str2.length) {
      var diff = str1.length - str2.length;
      str1.substring(diff, str1.length) + str2;
    } else {
      var diff = str2.length - str1.length;
      str1 + str2.substring(diff, str2.length);
    }
  }
  def main(args: Array[String]): Unit = {
    var str1 = "Welcome";
    var str2 = "home";
    println("The given strings is: " + str1 + " and " + str2);
    println("The new string is: " + test(str1, str2));
    str1 = "Scala";
    str2 = "Python";
    println("The given strings is: " + str1 + " and " + str2);
    println("The new string is: " + test(str1, str2));
  }
} 

Sample Output:

The given strings is: Welcome and home
The new string is: comehome
The given strings is: Scala and Python
The new string is: Scalaython

Scala Code Editor :

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