Page 204 - CTS - CSA TP - Volume 2
P. 204
COMPUTER SOFTWARE APPLICATION - CITS
public static void main(String[] args) {
// Create an instance of SimpleContainer, passing the desired title
SimpleContainer simpleContainer = new SimpleContainer(“Simple Container Example”);
}
}
1 Import necessary classes:
These lines import the Frame and Label classes from the java.awt package, which are used for creating graphical
user interface components.
2 Define the class SimpleContainer:
This line declares a class named SimpleContainer that extends the Frame class. This means that SimpleContainer
is a subclass of Frame and inherits its properties and methods.
3 Constructor of SimpleContainer class:
This line begins the constructor of the SimpleContainer class. The constructor is a special method that is called
when an instance of the class is created. It takes a String parameter title to set the title of the frame.
4 Call the superclass constructor:
This line calls the constructor of the superclass (Frame) with the provided title. It sets the title of the frame.
5 Create a label:
This line creates a new Label component with the specified text.
6 Add the label to the frame:
This line adds the created label to the frame. It places the label inside the frame.
7 Set the size of the frame:
This line sets the size of the frame to 300 pixels in width and 200 pixels in height.
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CITS : IT & ITES - Computer Software Application - Exercise 116