Scala program to convert the string into uppercase

Here, we are going to learn how to convert the string into uppercase in Scala programming language?
Submitted by Nidhi, on May 23, 2021 [Last updated : March 10, 2023]

Scala – Convert a String to Uppercase

Here, we will create a string and then we will convert the string into uppercase and print the result on the console screen.

Scala code to convert the string into uppercase

The source code to convert the string into uppercase is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

// Scala program to convert the
// string into uppercase

object Sample {
  def main(args: Array[String]) {
    var str: String = "Hello World";

    var res = str.toUpperCase();

    printf("String in lowercase: '%s'\n", res);
  }
}

Output

String in lowercase: 'HELLO WORLD'

Explanation

In the above program, we used an object-oriented approach to create the program. And, we created an object Sample. Here, we defined main() function. The main() function is the entry point for the program.

In the main() function, we created a string variable str initialized with "Hello World". Then we converted the string str into uppercase using the toUpperCase() method and assigned the result into the res variable. After that, we printed the result on the console screen.

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