1. **Java Syntax**:
- Basic structure of a Java program (class, methods, main method).
- Importance of semicolons, curly braces, and comments.
2. **Data Types**:
- Primitive types (int, double, char, boolean) and reference types (String, arrays).
- Declaring variables and assigning values.
3. **Control Flow**:
- Conditional statements (`if`, `else if`, `switch`).
- Loops (`for`, `while`, `do-while`).
4. **Methods**:
- Declaring and calling methods.
- Method parameters and return types.
5. **Arrays**:
- Declaring, initializing, and accessing arrays.
- Basic operations with arrays.
6. **Basic Object-Oriented Programming**:
- Classes and objects: defining classes and creating objects.
- Instance variables and methods.
7. **Input/Output**:
- Using `System.out.println` for output.
- Reading input using `Scanner`.
This foundation will help you get comfortable with the basics of Java programming and prepare you for more advanced topics.