Scala Programming: Convert all the characters in a string to lowercase, uppercase

Last update on June 11 2025 13:12:18 (UTC/GMT +8 hours)

Write a Scala program to convert all the characters to lowercase, uppercase strings.

Sample Solution:

Scala Code:

object Scala_String {

  def main(args: Array[String]): Unit = {
    val str = "The Quick BroWn FoX!";

    // Convert the above string to all lowercase.
    val lowerStr = str.toLowerCase();
    val upperStr = str.toUpperCase();

    // Display the two strings for comparison.
    println("Original String: " + str);
    println("String in lowercase: " + lowerStr);
    println("String in uppercase: " + upperStr);
  }
}

Sample Output:

Original String: The Quick BroWn FoX!
String in lowercase: the quick brown fox!
String in uppercase: THE QUICK BROWN FOX!

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