Just Java™ 2

Exercises

1. Distinguish between class and object, member and field, primitive type and class type.

2. Write a sample program that demonstrates the compiler will not let you access a private member from another class, but that you can write a public accessor function to set the value of a private field. (Compile the first part, compile and run the second part.)

3. Write a class with a static block, some constructors, and instance initializers that print out the order in which these are executed.

4. Describe why a setSomething() method is often given protected visibility.