All the coding blocks given below are self explanatory along with the required comments. If you need further clarifications, please feel free to approach me through the contact forum.
Java - Primitive Data Types
Java - Arithmetic Operators (You can use System.out.println() to print any values and verify)
Java - Logical And Bitwise Operators
Java - Relational Operators
Java - If Condition
Java - Nested If Condition
Loops Concepts:
Java - For Loop
Java - Nested For Loop
Java - While Loop
Java - Do While Loop
Java - Loop 'Break' & 'Continue' statements (Can be used for all the loops)