Respuesta :
Answer:
Kindly note that, you're to replace "at" with shift 2 as the brainly text editor can't take the symbol
Explanation:
//TASK1
//Time.java
public class Time
{
/**hours in conventional time*/
private int hours;
/**minutes in conventional time*/
private int minutes;
/**true if afternoon time, false if morning time*/
private boolean afternoon;
/**Constructs a cutomary time (12 hours, am or pm)
from a military time ##:##
"at"param militaryTime time in the military format ##:##*/
public Time(String militaryTime)
{
//Check to make sure something was entered
if (militaryTime == null)
{
System.out.println(
"You must enter a valid miliary time." );
}
//Check to make sure there are 5 characters
else if (militaryTime.length()!=5)
{
System.out.println(militaryTime +
" is not a valid miliary time." );
}
else
{
//Check to make sure the colon is in
//the correct spot
if (militaryTime.charAt(2)!=':')
{
System.out.println(militaryTime +
" is not a valid miliary time." );
}
//Check to make sure all other characters are digits
else if (!Character.isDigit(militaryTime.charAt(0)))
{
System.out.println(militaryTime +
" is not a valid miliary time." );
}
else if (!Character.isDigit(militaryTime.charAt(1)))
{
System.out.println(militaryTime +
" is not a valid miliary time." );
}
else if (!Character.isDigit(militaryTime.charAt(3)))
{
System.out.println(militaryTime +
" is not a valid miliary time." );
}
else if (!Character.isDigit(militaryTime.charAt(4)))
{
System.out.println(militaryTime +
" is not a valid miliary time." );
}
else
{
//SEPARATE THE STRING INTO THE HOURS
//AND THE MINUTES, CONVERTING THEM TO
//INTEGERS AND STORING INTO THE
//INSTANCE VARIABLES
//validate hours and minutes are valid values
hours=Integer.parseInt( militaryTime.substring(0,2));
minutes=Integer.parseInt(militaryTime.substring(3,5));
if(hours > 23)
{
System.out.println(militaryTime +
" is not a valid miliary time." );
}
else if(minutes > 59)
{
System.out.println(militaryTime +
" is not a valid miliary time." );
}
//convert military time to conventional time
//for afternoon times
else if (hours > 12)
{
hours = hours - 12;
afternoon = true;
System.out.println(this.toString());
}
//account for midnight
else if (hours == 0)
{
hours = 12;
System.out.println(this.toString());
}
//account for noon
else if (hours == 12)
{
afternoon = true;
System.out.println(this.toString());
}
//morning times don't need converting
else
{
System.out.println(this.toString());
}
}
}
}
/**toString method returns a conventional time
"at"return a conventional time with am or pm*/
public String toString()
{
String am_pm;
String zero = "";
if (afternoon)
am_pm = "PM";
else
am_pm = "AM";
if (minutes < 10)
zero = "0";
return hours + ":" + zero + minutes + " " + am_pm;
}
}
//TimeDemo.java
import java.util.Scanner;
public class TimeDemo
{
public static void main (String [ ] args)
{
Scanner keyboard = new Scanner(System.in);
char answer = 'Y';
String enteredTime;
String response;
while (Character.toUpperCase(answer)=='Y')
{
System.out.print(
"Enter a miitary time using the ##:## form ");
enteredTime = keyboard.nextLine();
Time now = new Time (enteredTime);
System.out.println(
"Do you want to enter another (Y/N)? ");
response = keyboard.nextLine();
answer = response.charAt(0);
}
}
}
