Here’s a complete practical example of all main Java data types in action: primitive and non-primitive.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | public class DataTypesExample { public static void main(String[] args) { // Primitive Data Types byte age = 25; short year = 2025; int population = 1400000; long distance = 12345678900L; float price = 9.99f; double salary = 50000.75; boolean isJavaFun = true; char grade = 'A'; // Non-Primitive Data Type String name = "Vipul"; // Printing all variables System.out.println("Byte Age: " + age); System.out.println("Short Year: " + year); System.out.println("Int Population: " + population); System.out.println("Long Distance: " + distance); System.out.println("Float Price: " + price); System.out.println("Double Salary: " + salary); System.out.println("Boolean isJavaFun: " + isJavaFun); System.out.println("Char Grade: " + grade); System.out.println("String Name: " + name); // Arithmetic operation with numbers int a = 10, b = 20; System.out.println("Sum of a + b: " + (a + b)); } } |
Byte Age: 25
Short Year: 2025
Int Population: 1400000
Long Distance: 12345678900
Float Price: 9.99
Double Salary: 50000.75
Boolean isJavaFun: true
Char Grade: A
String Name: Vipul
Sum of a + b: 30
Primitive Data Types: byte, short, int, long, float, double, boolean, char
Non-Primitive Data Type: String (used for text)
You can combine variables in expressions and print them.
final keyword can make any variable constant (unchangeable).
