To create the Year class, you can follow these steps:
Step 1: Define the Year class with the required data fields and methods.
```java
public class Year {
private int numberOfMonths;
private int numberOfDays;
public Year() {
this.numberOfMonths = 12;
this.numberOfDays = 365;
}
// Getters and Setters
public int getNumberOfMonths() {
return numberOfMonths;
}
public void setNumberOfMonths(int numberOfMonths) {
this.numberOfMonths = numberOfMonths;
}
public int getNumberOfDays() {
return numberOfDays;
}
public void setNumberOfDays(int numberOfDays) {
this.numberOfDays = numberOfDays;
}
}
```
Step 2: Design an application to instantiate one object of the Year class and display its data.
```java
public class YearApplication {
public static void main(String[] args) {
// Instantiate a Year object
Year year = new Year();
// Display the data
System.out.println("Number of Months: " + year.getNumberOfMonths());
System.out.println("Number of Days: " + year.getNumberOfDays());
}
}
```
When you run the `YearApplication` class, you will see the output:
```
Number of Months: 12
Number of Days: 365
```
This demonstrates the instantiation of one object of the Year class and displays its data.