Get Mystery Box with random crypto!

Code snippet: 13: String a = ''; 14: a += 2; 15: a += 'c'; 16: | Top Java Quiz Questions ☕️

Code snippet:
13: String a = "";
14: a += 2;
15: a += 'c';
16: a += false;
17: if ( a == "2cfalse") System.out.println("==");
18: if ( a.equals("2cfalse")) System.out.println("equals");