Section 9.12 Check Point Questions3 questions

9.12.1

If a class contains only private data fields and no setter methods, is the class immutable?

9.12.2

If all the data fields in a class are private and of primitive types, and the class doesn't contain any setter methods, is the class immutable?

9.12.3

Is the following class immutable?

public class A {
  private int[] values;

  public int[] getValues() {
    return values;
  }
}