What Will Be The Output Of The Following Java Codep Pre #538

 public class Main { int a; int b; Main(int a, int b) { this.a = a; this.b = b; } Main(Main s) { a = s.a; b = s.b; } void Set() { a = 10; b = 20; } void calc() { System.out.println(a*b); } public static void main(String[] args) { Main a = new Main(20, 30); Main b = new Main(a); a.calc(); a.Set(); b.calc(); } }

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