16_1 (StringBuilder)

4 (how debug in IDEA,switch, functions ( isAdult, sumNumbers, isPolindrom, revers, printDigits) )

2_1 (for, while, --, ++)

2_2 (Void type, % operator, isParzNumber, getBajCount, printBajEffectiv, printOddNumbers)

2_3 (connection between if and boolean , functions)

1_4 (introduction to java, java types, functions. (min, max, sayHello, getAge()))

13_2 (static fields and methods,System.out.println(),what is a reference, pass params to functions)

6_1 (functions( maxOfArray))

13_1(default constructor?,multiple inheritance,multiple lair of inheritance,final fields)

19_3 (Exceptions)

19-2 (Exceptions)

16_1 (StringBuilder)

20_3 (read write files)

10_2 (Classes, Incapacitation )

7_1 (functions (fillArray, printArrayRevers, printArray, getLastElement, merge, sumOfArray))

9_3 (this, method vs static methods )

10_1 (Classes, Incapacitation)

8_1 (Block scope of variables in java, Java Varargs (...), Arrays common functions, )

18_1 (var , Interface)

17_3 (Wrapper classes(Integer, Long, Short, ))

5_3 (for with Arrays)

3_1 (functions (powOf, printPrimeByRange, sumOfBaj))

3_2 (break, continue)

21_3 (Generics)

18_2 (Interface)