Page 375 - Computer_Science_F5

Computer Science Java program to use this keyword for pasing current object
Program Example 5.30:

class MyClass {
FOR ONLINE READING ONLY
int age;
//code shows parameterised constructor
MyClass(int age) {
this.age = age;
}
//Code shows a method to display age
void displayAge() {
System.out.println(“Age: “ + this.age);
}
// method to pass a current object as argument
void myObject() {
methodTwo(this);
}
// method to receive the current object as an argument
void methodTwo(MyClass obj) {
System.out.print(“See age from object: “);
obj.displayAge();
}
public static void main(String[] args) {
// creating an object of MyClass
MyClass obj = new MyClass(5700);
// code invoke myObject method
obj. myObject();
}
}

Output:

Figure 5.32: Output showing "this" keyword passing objects

The myObject() method invokes methodTwo() and provides the current object
(referred to as “this”) as an argument. Inside methodTwo(), you can receive the
current object as an argument and proceed to call the displayAge() method, which
prints the age of an object.

366
for Advanced Secondary Schools

Computer Science Form 5.indd 366 23/07/2024 12:34