Data Types (8 primitives)

• 6 of them handle numbers
• char & boolean

Operators

• Division (divided by 0)
• Math Operators (%, ++x, x++)
• Comparison (>, <, >=, <=, !=, ==) -> primitives

String (store zero or many characterss)

• equals(String), length(), charAt(int)

If, else if, else

for (int i= 0; i < 3; i++){}

for + if (loop all elements + filtering)

• Secarhing (for + if)

• while loop (difference between for loop and while loop)
• for-each loop (simple design for loop: one element per iteration)
• array (support 17 types)
• 8 wrapper classes (8 primitives)
• String methods
• Static Methods (similar to formula)
• Input parameters
• Return type
• Method name
• Method signature = input params + method name
• BigDecimal for math caculation