Given:

What is the result?

Given the following class:

Which three pieces of code, when inserted independently, set the value of amount to 100?

A method is declared to take three arguments. A program calls this method and passes only two arguments. What is the results?

Which three statements describe the object-oriented features of the Java language? (Choose three.)

You are developing a banking module. You have developed a class named ccMask that has a maskcc method.
Given the code fragment:

You must ensure that the maskcc method returns a string that hides all digits of the credit card number except the four last digits (and the hyphens that separate each group of four digits).
Which two code fragments should you use at line n1, independently, to achieve this requirement? (Choose two.)