***NEED HELP ASAP PLEASE WITH THIS PROBLEM!** - SIMPLE UNDERSTANDING PLEASE!

Consider the following interface for unary integer functions and example implementation: interface Fun { public int eval(int i); } class Inc implements Fun { public int eval(int i) { return i+1; }} Write class TimesN that multiplies an integer by a fixed value. For example, Fun t5 = new TimesN(5); System.out.println (t5.eval(2)); has the output: 10