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Scala program to demonstrate the replaceAll() method

Here, we are going to demonstrate the replaceAll() method in Scala programming language.
Submitted by Nidhi, on May 23, 2021 [Last updated : March 10, 2023]

Scala – String.replaceAll() Method

Here, we will create a string and then replace all substrings matching the regular expression using the replaceAll() method. After that, we will print the result on the console screen.

Scala code to demonstrate the example of String.replaceAll() method

The source code to demonstrate the replaceAll() method is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

// Scala program to demonstrate the
// replaceAll() method

object Sample {
  def main(args: Array[String]) {
    var str: String = "MAN WAN LAN PAN NETWORK";
    var res: String = "";

    res = str.replaceAll(".AN", "##");
    printf("Result:\n%s\n", res);
  }
}

Output

Result:
## ## ## ## NETWORK

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 "MAN WAN LAN PAN NETWORK". Then we replaced all substrings with "##", matching specified regular expression in the replaceAll() method and assigned the result into res variable, and then printed the result on the console screen.

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