What are the 5 data types in java geeksforgeeks example

What are the 5 data types in java geeksforgeeks example

I apologize for any inconvenience earlier! Here's a detailed explanation of the five basic data types in Java, along with examples from GeeksforGeeks:

Example: In a banking application, you might use a byte to store a customer's age, which would typically be between 0 and 120. Since byte only allows values up to 127, you would need to use an int or long for this purpose in real-world scenarios.

public class Main {
public static void main(String[] args) {
byte age = 30; // valid value
System.out.println("Age: " + age);
age = 128; // invalid value, will throw a compile-time error
System.out.println("Age: " + age);
}
}

Example: In an inventory management system, you might use a short to store the quantity of items in stock, which would typically be between 0 and a few thousand.

public class Main {
public static void main(String[] args) {
short quantity = 100; // valid value
System.out.println("Quantity: " + quantity);
quantity = -5000; // invalid value, will throw an ArithmeticException at runtime
System.out.println("Quantity: " + quantity);
}
}

Example: In a payroll system, you might use an int to store the number of hours worked by an employee in a day, which could be any value within this range.

public class Main {
public static void main(String[] args) {
int hours = 8; // valid value
System.out.println("Hours: " + hours);
hours = -50000; // valid value
System.out.println("Hours: " + hours);
}
}

Example: In an accounting system, you might use a long to store the total sales revenue for a year, which could be any value within this massive range.

public class Main {
public static void main(String[] args) {
long revenue = 1000000; // valid value
System.out.println("Revenue: " + revenue);
revenue = -5000000; // valid value
System.out.println("Revenue: " + revenue);
}
}

Example: In a game development, you might use a boolean to represent the state of a character's health (true for alive, false for dead) or whether a player has completed a level (true for completed, false for not).

public class Main {
public static void main(String[] args) {
boolean isAlive = true; // valid value
System.out.println("Is Alive: " + isAlive);
isAlive = false; // valid value
System.out.println("Is Alive: " + isAlive);
}
}

These data types serve as the foundation for programming in Java, allowing you to create robust and efficient applications.

Primitive data type in Java

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Primitive Data Types in Java:

In Java, primitive data types are the built-in data types that are pre-defined and cannot be changed or extended by users. They are the foundation of any programming language, and understanding them is crucial for writing efficient and effective code.

Here are the eight primitive data types in Java, along with their meanings and examples:

Example: boolean isAdmin = true;

Example: byte favoriteColor = 3;

Example: char myFavoriteCharacter = 'A';

Example: short score = 100;

Example: int myAge = 25;

Example: long myId = 1234567890123456L;

Example: float temperature = 23.5f;

Example: double pi = 3.14159265359;

In conclusion, Java's primitive data types are essential for building robust and efficient programs. By understanding their meanings and uses, you'll be better equipped to write clean, readable, and maintainable code.

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