Computer Applications
How can class be used as user defined data types? Explain it with the help of an example.
Java Classes
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Answer
Since a class is created by the user, it is also known as user defined data type. Take the example of the below class:
class Cuboid {
private double height;
private double width;
private double depth;
private double volume;
public void input(int h, int w, int d) {
height = h;
width = w;
depth = d;
}
public void computeVolume() {
volume = height * width * depth;
System.out.println("Volume = " + volume);
}
}
After defining this class, I can use Cuboid as a new data type and create variables of Cuboid type as shown below:
public static void main(String[] args) {
Cuboid c1 = new Cuboid();
c1.input(5, 10, 5);
c1.computeVolume();
Cuboid c2 = new Cuboid();
c2.input(2, 4, 9);
c2.computeVolume();
}
This is how we can use class as a user defined data type.
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