Waltz Waltz = new Waltz (\"Moon River\"); Chacha chacha = new ChaCha (); Tango t

Question

Waltz Waltz = new Waltz ("Moon River"); Chacha chacha = new ChaCha (); Tango tango = new Tango (); waltz.playMusic (); chacha.danceBasic (); tango.makeRoutine (); interface Dance public {public void playMusic (); public void danceBasic ();} Which of the following classes correctly implements the Dance interface? class Waltz implements Dance {private String music; public Waltz (String m) {music = m;} public void playMusic () {System.out.println ("Play " + music);} public void danceBasic () {System out.println ("Forward-side-close, back-side-close");}} class Chacha implements Dance {public void playMusic() {system.out.println ("Play music");} public void danceBasic () {System.out.println ("Rock-step, cha-cha-cha");}} class Tango implements Dance {public void playMusic () {Systems.out.println ("Play music public");} public void danceBasic () {System.out.println ("Forward, forward, forward-side-drag");} public void makeRoutine () {system.out.printin ("Make dance routine");}} (A) waltz only (B) Chacha only (C) Waltz and Chacha only (D) Chacha and Chacha only (E) Waltz, ChaCha and Tango

Explanation / Answer

Answer: Option (E)
Reason: Interface has 2 methods and all the three classes uses the two methods and implemented them in their class.So all the three classes implemented the interface correctly.

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