OBJECT ORIENTED PROGRAMMING THROUGH JAVA : Unit - 2 : Topic - 15 : Nesting of Methods in Java

 

Unit - 2

Topic - 15 : Nesting of Methods in Java

In Java, normally a method of a class is called using an object of that class with the dot (.) operator.
However, if one method of a class calls another method from the same class, we don’t need to use an object — we can call it directly by name.
This concept is called Nesting of Methods.

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Example Program

// Program to demonstrate Nesting of Methods
class Test {
    int a, b;

    // Constructor
    Test(int p, int q) {
        a = p;
        b = q;
    }

    // Method to find the greatest of two numbers
    int greatest() {
        if (a >= b)
            return a;
        else
            return b;
    }

    // Method that calls another method (nested call)
    void display() {
        int great = greatest(); // Calling greatest() without object
        System.out.println("The Greatest Value = " + great);
    }
}

class Temp {
    public static void main(String args[]) {
        Test t1 = new Test(25, 24); // Create object
        t1.display(); // Call display(), which internally calls greatest()
    }
}

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Output

The Greatest Value = 25

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Explanation

• The method display() calls greatest() directly (without using an object).

• Both methods belong to the same class (Test), so we can use the method name directly.

• This avoids repetitive object references when calling methods inside the same class.