/*
 *
 */

public class SongApp{
  public static void main(String[] args){
  Song song1 = new Song();
  song1.setsongLine("While my guitar gently weeps.");
  song1.display();
  song1.process();
  Song song2 = new Song();
  song2.setsongLine("Let it be");
  song2.display();
  }
}

/*
 *
 */

public class Song{
  // data field declaration
  private String songLine;


  /*sets the value of the data field songLine to input parameter value*/
  public void setsongLine(String songLine){
    this.songLine = songLine;
  } //end method

 /*returns the value of the data field songLine */
 public String getsongLine(){
    return songLine;
 } //end method


  //method called process
  public String process(){
    int stringLength = songLine.length();
  }
  /*displays formatted songLine information to the console window */
  public void display(){
   System.out.println(songLine);
   System.out.println("Length is :" + process());
  }
}

public static void main(String[] args){
    ...
    System.out.println(song1.process());
    ...
}
public String process(){
    return "Length is " + songLine.length();
}

public void process(){
    System.out.println("Length is " + songLine.length());
}

public Integer process() {
    return songLine.length();
}