Explain features of Java programming. Write a program implementing class object.

 Java is a popular programming language that is used to develop a wide range of applications, from desktop software to mobile apps and web applications. Some of the key features of Java programming include:

1. Object-oriented: Java is an object-oriented programming language, which means that it is based on the concept of objects. Everything in Java is an object, including classes, methods, and variables.
2. Platform-independent: Java programs can run on any platform that has a Java Virtual Machine (JVM), which means that Java code can be developed on one platform and run on any other platform that supports Java.
3. Garbage collection: Java has a built-in mechanism for automatic memory management called garbage collection. This means that developers don't have to manage memory manually, which can reduce errors and improve performance.
4. Multi-threaded: Java supports multi-threading, which means that multiple threads can execute concurrently within a single program. This allows developers to take advantage of modern multi-core processors and improve application performance.
5. Exception handling: Java provides a robust system for handling errors and exceptions, which makes it easier for developers to write reliable code that can handle unexpected situations.
6. Rich API: Java comes with a large set of APIs that make it easy to develop a wide range of applications, from desktop software to mobile apps and web applications.

Here is an example of implementing a class object in Java:

public class Car {
  // member variables
  private String make;
  private String model;
  private int year;
  // constructor
  public Car(String make, String model, int year) {
    this.make = make;
    this.model = model;
    this.year = year;
  }
  // getter methods
  public String getMake() {
    return make;
  }
  public String getModel() {
    return model;
  }
  public int getYear() {
    return year;
  }
  // setter methods
  public void setMake(String make) {
    this.make = make;
  }
  public void setModel(String model) {
    this.model = model;
  }
  public void setYear(int year) {
    this.year = year;
  }
}
// main program
public class Main {
  public static void main(String[] args) {
    // create a Car object
    Car myCar = new Car("Toyota", "Camry", 2022);
    // print the car's make, model, and year
    System.out.println("Make: " + myCar.getMake());
    System.out.println("Model: " + myCar.getModel());
    System.out.println("Year: " + myCar.getYear());
    // change the car's make and year
    myCar.setMake("Honda");
    myCar.setYear(2023);
    // print the updated make and year
    System.out.println("Make: " + myCar.getMake());
    System.out.println("Year: " + myCar.getYear());
  }
}

This program defines a Car class with three member variables (make, model, and year) and getter and setter methods for each variable. It also defines a Main class with a main method that creates a Car object and prints its make, model, and year. The program then updates the car's make and year using the setter methods and prints the updated values.