How to Create Struct-like Data Structures in Java?

How can I create a struct-like data structure in Java?

// Example of a simple struct-like class in Java:
public class Person {
    private String name;
    private int age;

    public Person(String name, int age) {
        this.name = name;
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }
}

In Java, while there is no specific 'struct' type as found in languages like C or C++, you can achieve similar functionality using classes. Classes in Java are used to encapsulate data and related behaviors, making them powerful constructs for creating data structures.

// Example of using the Person class to create a struct-like instance:
public class Main {
    public static void main(String[] args) {
        Person person = new Person("Alice", 30);
        System.out.println("Name: " + person.getName() + ", Age: " + person.getAge());
    }
}

Causes

• Java is an object-oriented programming language that doesn't support structs natively.
• Classes can be used to create composite data structures, similar to structs.

Solutions

• Define a class with fields that represent data attributes.
• Use constructors to initialize these attributes, and provide getter methods for access.

Mistake: Not providing a constructor to initialize fields.

Solution: Always define a constructor to set initial values for your object's attributes.

Mistake: Accessing private fields directly instead of using getter methods.

Solution: Use public getter methods to retrieve the values of private fields.