Create a Java program that takes a month number as an input and outputs the prop
ID: 3671941 • Letter: C
Question
Create a Java program that takes a month number as an input and outputs the proper month name. Your program should have two classes. The first class, Month, should include the method MonthInput, which takes a user input and stores it in a class level variable. The second method MonthName of data type String, will accept one argument, a month number, and return the proper month name (use any decision structure type in this method body). The third method, DisplayMonth, will accept a string with the name of the month found and generate a user-friendly display screen with the user input entered and the name the month found. The second class, ShowMonth, will have the main method. It will create an object from the Month class and call each of three instance methods defined in the Month class.
Explanation / Answer
MonthView.java
import java.io.Console;
public class MonthView{
public static void main(String[] args){
Month m = new Month();
boolean invalid = false;
do{
Console console = System.console();
try{
String month = console.readLine("Enter month number: ");
m.setMonth(Integer.parseInt(month));
System.out.printf("Month name is %s ", m.getMonthStr());
invalid = false;
}catch(IllegalArgumentException ex){
invalid = true;
System.out.printf("Error: %s ", ex.getMessage());
}
}while(invalid);
}
}
Month.java
public class Month{
private int mMonth;
public Month(){
mMonth = 1;
}
public void setMonth(int month){
if (month < 1 || month > 12)
throw new IllegalArgumentException("Invalid month, month should between 1 and 12");
mMonth = month;
}
public String getMonthStr(){
String monthName = "";
switch(mMonth){
case 1:
monthName = "Jan";
break;
case 2:
monthName = "Feb";
break;
case 3:
monthName = "Mar";
break;
case 4:
monthName = "Apr";
break;
case 5:
monthName = "May";
break;
case 6:
monthName = "Jun";
break;
case 7:
monthName = "Jul";
break;
case 8:
monthName = "Aug";
break;
case 9:
monthName = "Sep";
break;
case 10:
monthName = "Oct";
break;
case 11:
monthName = "Nov";
break;
case 12:
monthName = "Dec";
break;
default:
throw new IllegalArgumentException("Invalid month.");
}
return monthName;
}
}