Write code to input military time and print the hour and the whether it is AM or PM. Hours only.

MilitaryTime.java

import javax.swing.*;

public class MilitaryTime {

	public static void main(String[] args) {
		String militaryTime_in = JOptionPane.showInputDialog("Enter time in military format: ");
		
		int militaryTime = Integer.parseInt(militaryTime_in);
		
		String halfDay = militaryTime >= 1200 ? "PM" : "AM";
		
		switch(militaryTime){
		case 0:
			JOptionPane.showMessageDialog(null, "12 " + halfDay);
		   break;
		case 100:
			JOptionPane.showMessageDialog(null, "1 " + halfDay);
		   break;
		case 200:
			JOptionPane.showMessageDialog(null, "2 " + halfDay);
			break;
		case 300:
			JOptionPane.showMessageDialog(null, "3 " + halfDay);
		   break;
		case 400:
			JOptionPane.showMessageDialog(null, "4 " + halfDay);
		   break;
		case 500:
			JOptionPane.showMessageDialog(null, "5 " + halfDay);
			break;
		case 600:
			JOptionPane.showMessageDialog(null, "6 " + halfDay);
		   break;
		case 700:
			JOptionPane.showMessageDialog(null, "7 " + halfDay);
		   break;
		case 800:
			JOptionPane.showMessageDialog(null, "8 " + halfDay);
		   break;
		case 900:
			JOptionPane.showMessageDialog(null, "9 " + halfDay);
		   break;
		case 1000:
			JOptionPane.showMessageDialog(null, "10 " + halfDay);
		   break;
		case 1100:
			JOptionPane.showMessageDialog(null, "11 " + halfDay);
			break;
		case 1200:
			JOptionPane.showMessageDialog(null, "12 " + halfDay);
		   break;
		case 1300:
			JOptionPane.showMessageDialog(null, "1 " + halfDay);
		   break;
		case 1400:
			JOptionPane.showMessageDialog(null, "2 " + halfDay);
			break;
		case 1500:
			JOptionPane.showMessageDialog(null, "3 " + halfDay);
		   break;
		case 1600:
			JOptionPane.showMessageDialog(null, "4 " + halfDay);
		   break;
		case 1700:
			JOptionPane.showMessageDialog(null, "5 " + halfDay);
			break;
		case 1800:
			JOptionPane.showMessageDialog(null, "6 " + halfDay);
			break;
		case 1900:
			JOptionPane.showMessageDialog(null, "7 " + halfDay);
		   break;
		case 2000:
			JOptionPane.showMessageDialog(null, "8 " + halfDay);
		   break;
		case 2100:
			JOptionPane.showMessageDialog(null, "9 " + halfDay);
			break;
		case 2200:
			JOptionPane.showMessageDialog(null, "10 " + halfDay);
			break;
		case 2300:
			JOptionPane.showMessageDialog(null, "11 " + halfDay);
		   break;
		case 2400:
			JOptionPane.showMessageDialog(null, "12 " + halfDay);
		   break;
		   default:
			   JOptionPane.showMessageDialog(null, "Hours only, please try again.");
		}	
	} 
}