Scala Programming: Create a new string which is 4 copies of the 2 front characters of a given string

Scala Programming Basic Exercise-9 with Solution

Write a Scala program to create a new string which is 4 copies of the 2 front characters of a given string.If the given string length is less than 2 return the original string.

Sample Solution:

Scala Code:

object scala_basic {
  def test(str1: String): String = 
    {
    if (str1.length < 2) str1 
    else str1.substring(0, 2) * 4
    }
     
   def main(args: Array[String]): Unit = {
      println("Result: " + test("Scala"));
      println("Result: " + test("abcd"));
      println("Result: " + test("ab"));
      println("Result: " + test("a"));
    }
}

Sample Output:

Result: ScScScSc
Result: abababab
Result: abababab
Result: a

Scala Code Editor :

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