Page 355 - Computer_Science_F5

Computer Science (b) Creating an object
An object is created from a class in Java. From the previous class “Main”, objects
can be created as it is shown in the following Program Example 5.15 by specifying
the class name and object name. The object is created using the keyword “new”:
FOR ONLINE READING ONLY
Program Example 5.15:

Java program to create an object myDemo

public class Main2 {
int x = 116;
public static void main(String[] args) {
Main2 myDemo = new Main2();
System.out.println(myDemo.x); //This print the value of x, where the object created
//access the attribute from the main class
}
}

Output:

Figure 5.16: Creating an object

(c) Creating multiple objects
Multiple objects can be created in Main2 class as it is shown in Program Example
5.16.

Program Example 5.16:

Java program to create multiple objects

public class Main2 {
int x = 116; int y = 556;
public static void main(String[] args) {
Main2 myDemo1= new Main2(); // This code creates the Object 1
Main2 myDemo2= new Main2(); // This code creates the Object 2
System.out.println(myDemo1.x);
System.out.println(myDemo2.y);
}
}

Output:

Figure 5. 17: Creating multiple objects

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Computer Science Form 5.indd 346 23/07/2024 12:34