Using Objects as Parameters in Java | Object Oriented Programming | Explained in Hindi IGNOU MCS024

In Java, you can pass objects as parameters to methods, allowing you to work with and manipulate those objects within the method. When you pass an object as a parameter, you are passing a reference to the object, which means any changes made to the object within the method will affect the original object. Here's how you can use objects as parameters in Java:

Defining a Class:
First, you need to create a class for the objects you want to work with. This class defines the structure and behavior of the objects.

public class MyClass {
private int value;

public MyClass(int value) {
}

public int getValue() {
return value;
}

public void setValue(int value) {
}
}

Passing Objects as Parameters:
You can pass objects of your class as parameters to methods. Here's an example of a method that takes an object of the MyClass class as a parameter:

public void modifyObject(MyClass obj, int newValue) {
}

Using Objects as Parameters:
You can call the method and pass an object as an argument. When the method is executed, it will modify the object's state.

public static void main(String[] args) {
MyClass myObject = new MyClass(42);

MyClassModifier modifier = new MyClassModifier();

}

In the example above, the modifyObject method takes an object of the MyClass class as a parameter and updates the value attribute of the object. When you pass myObject to this method, it modifies the value of myObject, and you can observe the change in the main method.

Remember that when you pass an object as a parameter, you are passing a reference to the object, so changes made to the object within the method will affect the original object. This is a fundamental concept in Java, and it allows you to work with and manipulate objects effectively in your programs.

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