Category: Java Tutorial

Java Type Casting

Java Type Casting (Type Conversion) Type casting in Java is the process of converting a variable from one data type to another. There are two types of type casting: 1. Widening Casting (Automatic /...

Java Tutorial

Java var

✅ var Keyword in Java The var keyword was introduced in Java 10 to allow local variable type inference, meaning Java will automatically detect the data type based on the value assigned. 👉 You...

Java Tutorial

Java Non Primitive Data Types

✅ Java Non-Primitive Data Types In Java, non-primitive data types (also called reference types) are used to store references (memory addresses) to objects rather than actual values.They are more complex than primitive types and...

Java Tutorial

Java Data Types Example

✅ Java Data Types — Examples Here’s a complete practical example of all main Java data types in action: primitive and non-primitive. 📌 Example Program

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));
}
}

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));

}

📌 Output Byte Age: 25 Short Year:...

Java Tutorial

int age = 25;
System.out.println(age);

1 2	int age = 25; System.out.println(age);

2. Declare First,...

Java Tutorial

Java Constants

Java Constants (final) In Java Constants (final) is a variable whose value cannot be changed once it is assigned.To declare a constant, you use the final keyword. Basic Example

final int age = 25;
System.out.println(age);

1 2	final int age = 25; System.out.println(age);

If you try to change...

Category: Java Tutorial

Java Type Casting

Java var

Java Non Primitive Data Types

Java Data Types Example

Java Characters (char)

Java Boolean Data Type

Java Numbers

Java Data Types

Java Variables Examples

Java Constants