FileUtils.writeStringToFile(new File("test.txt"), "This line overwites file contents!")

import org.apache.commons.io.FileUtils;
import java.io.File;

object SolutionXX extends Application {

FileUtils.writeStringToFile(new File("test.txt"), "This line overwites file contents!")
}

val fw = new FileWriter("test.txt") ; fw.write("This line overwites file contents!") ; fw.close()

import java.io.File;
import java.io.FileWriter;

object SolutionXX extends Application {

val fw = new FileWriter("test.txt") ; fw.write("This line overwites file contents!") ; fw.close()
}