1. Day 3

2. static

3. null reference

4. Java Arrays

5. Type[] arrayName = new Type[elements count];

6. int[] array1 = new int[10]; String[] array1 = new String[10]; Object[] array1 = new Object[10]; MyType[] array1 = new MyType[10];

7. String[] colors = new String[] {“red”, “blue”, “white”};

8. How To Access Elements?

9. String[] friends = new String[10]; friends[0] = “Oleg”; friends[1] = “Alex”; friends[3] = “Irina”; System.out.println(friends[1]); System.out.println(friends[3]);

10. Multidimensional arrays

11. Type[][] arrayName = new Type[rows count][columns count];

12. Java Loops

13. while (condition) { …. }

14. do { …. } while (condition);

15. for (counter; condition; increment) { …. }

16. Goals

17. Packages

18. Access Levels (Private, Protected, Public, default)

19. Private – this class only

20. Protected – this class and children

21. Public – no limits

22. default – package private

23. Encapsulation

24. final

25. Interfaces

26. Class casting

27. Never, Never, Never, Never Give Up!