Question

In this practical task, you need to implement a class called MyTime, which models a time instance. The class must contain three private instance variables: hour, with the domain of values between 0 to 23. minute, with the domain of values between 0 to 59. second, with the domain of values between 0 to 59. For the three variables you are required to perform input validation. The class must provide the following public methods to a user: MyTime() Constructor. Initializes a new instance of the MyTime class. MyTime (int hour, int minute, int second) Constructor. Initializes a new instance of the MyTime class and sets the three instance variables to the respective values given in the input. void SetTimel int hour, int minute, int second) Sets the three instance variables to the respective values given in the input. void SetHour( int hour) Mutator method. Gives the specified value to the instance variable hour. void Set Minute int minute ) Mutator method. Gives the specified value to the instance variable minute. void SetSecond( int second) Mutator method. Gives the specified value to the instance variable second. int GetHour() Accessor method. Gets the value of the instance variable hour. int GetMinute() Accessor method. Gets the value of the instance variable minute. int GetSecond() Accessor method. Gets the value of the instance variable second. String ToString() Returns a string that represents the current object. ToString() is the major formatting method in

Answer 1

SOURCE CODE:

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***The code in the below screenshot is neatly indented for better understanding.

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using System;

public class MyTime {
// fields
private int hour;
private int minute;
private int second;
  
// Constructor
public MyTime(){
hour=0;
minute=0;
second=0;
}
public MyTime(int hour, int minute, int second){
// check the conditions here
if(hour<0 || hour>23){
throw new ArgumentException("Invalid hour");
}
if(minute<0 || minute>59){
throw new ArgumentException("Invalid minute");
}
if(second<0 || second>60){
throw new ArgumentException("Invalid second");
}
this.hour=hour;
this.minute=minute;
this.second=second;
}
  
// methods
public void SetTime(int hour, int minute, int second){
// check the conditions here
if(hour<0 || hour>23){
throw new ArgumentException("Invalid hour");
}
if(minute<0 || minute>59){
throw new ArgumentException("Invalid minute");
}
if(second<0 || second>59){
throw new ArgumentException("Invalid second");
}
this.hour=hour;
this.minute=minute;
this.second=second;
}
  
public void setHour(int hour){
// check the conditions here
if(hour<0 || hour>23){
throw new ArgumentException("Invalid hour");
}
  
this.hour=hour;
}
  
public void setMinute(int minute){
// check the conditions here
if(minute<0 || minute>59){
throw new ArgumentException("Invalid minute");
}
this.minute=minute;
}
  
public void setSecond(int second){
// check the conditions here
if(second<0 || second>59){
throw new ArgumentException("Invalid second");
}
this.second=second;
}
  
// more get methods here
public int getHour()
{
return this.hour;
}
public int getMinute()
{
return this.minute;
}
public int getSecond()
{
return this.second;
}
  
// ToString
public override string ToString(){
return string.Format("{0:D2}:{1:D2}:{2:D2}",this.hour, this.minute, this.second);
}
  
// next times
public MyTime NextSecond(){
// check the conditions here
if(this.second==59){
if(this.minute==59)
return new MyTime((this.hour+1)%24, 0,0);
else
return new MyTime(this.hour, (this.minute+1)%60,0);
}
else
return new MyTime(this.hour, this.minute, this.second+1);
}
  
public MyTime NextMinute(){
// check the conditions here
if(this.minute==59)
return new MyTime((this.hour+1)%24, 0,this.second);
else
return new MyTime(this.hour, this.minute+1,this.second);
}
  
  
public MyTime NextHour(){
// check the conditions here
if(this.hour==23)
return new MyTime(0, this.minute,this.second);
else
return new MyTime(this.hour+1, this.minute,this.second);
}
  
  
// Previous times
public MyTime PreviousSecond(){
// check the conditions here
if(this.second==0){
if(this.minute==0){
if(this.hour==0){
return new MyTime(23,59,59);
}
else{
return new MyTime(this.hour-1, 59, 59);
}
}
else {
return new MyTime(this.hour, this.minute-1, 0);
}
}
else{
return new MyTime(this.hour, this.minute, this.second-1);
}
}
  
public MyTime PreviousMinute(){
// check
if(this.minute==0){
if(this.hour==0){
return new MyTime(23, 59, this.second);
}
else{
return new MyTime(this.hour, 59, this.second);
}
}
else{
return new MyTime(this.hour, this.minute-1, this.second);
}
}
  
public MyTime PreviousHour(){
// check
if(this.hour==0){
return new MyTime(23, this.minute, this.second);
}
else{
return new MyTime(this.hour-1, this.minute, this.second);
}
}
}

public class MyTimeDemo {
   static public void Main (){
       //Code here
       MyTime time = new MyTime(12,58,58);
       Console.WriteLine("The time is {0}",time);
       Console.WriteLine("\nNext Hour is {0}",time.NextHour());
       Console.WriteLine("Next Minute is {0}",time.NextMinute());
       Console.WriteLine("Next Second is {0}",time.NextSecond());

       Console.WriteLine("\nPrevious Hour is {0}",time.PreviousHour());
       Console.WriteLine("Previous Minute is {0}",time.PreviousMinute());
       Console.WriteLine("Previous Second is {0}",time.PreviousSecond());
      
       // try another
       Console.WriteLine("\n===================================");
       time = new MyTime(23,59,59);
       Console.WriteLine("\nThe time is {0}",time);
       Console.WriteLine("\nNext Hour is {0}",time.NextHour());
       Console.WriteLine("Next Minute is {0}",time.NextMinute());
       Console.WriteLine("Next Second is {0}",time.NextSecond());

       Console.WriteLine("\nPrevious Hour is {0}",time.PreviousHour());
       Console.WriteLine("Previous Minute is {0}",time.PreviousMinute());
       Console.WriteLine("Previous Second is {0}",time.PreviousSecond());
      
  

   }
}

===============

2 24 1 using System; 3. public class MyTime { 4 // fields 5 private int hour; 6 private int minute; 7 private int second; 8 9 // Constructor 10 - public MyTime 11 hour=0; 12 minute=0; 13 secondo; 14 } 15 public MyTime(int hour, int minute, int second) 16 // check the conditions here 17 if(hour<0 || hour>23) { 18 throw new ArgumentException("Invalid hour"); 19 20 - {romenutee || minute-59) 21 throw new ArgumentException("Invalid minute"); 22 23 if(second-| Second=60) { throw new ArgumentException("Invalid second"); 25 } 26 this.hour-hour; 27 this.minute minute, 28 this.second second; 29 30 31 // methods 32 public void setTime(int hour, int minute, int second) { 33 // check the conditions here 34 - if(hour 1 hour >23){ 35 throw new ArgumentException("Invalid hour"); 36 ) 37 if(minute<0 | minute>59) 38 throw new ArgumentException("Invalid minute"); 39 40 if(second<e || second>59) 41 throw new ArgumentException("Invalid second"); 42 this.hour hour; this.minute minute 45 this.second=second; 46 47 48 public void setHour(int hour 49 // check the conditions here 50 if(hourco | hour>23) 51 throw new ArgumentException("Invalid hour"); 52 53 54 this.hour hour! } ) ) 43 44 } }

public void setMinute(int minute) { // check the conditions here if(minute<0 || minute>59) { throw new ArgumentException("Invalid minute"); this.minute=Ninute; } public void setSecond(int second) [ // check the conditions here if (secondo || second>59) throw new ArgumentException("Invalid second"); ) this.second=second; ) [ S5 56 57 58 59 60 61 62 63 64 65 66 67 - 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 - 84 85 86 87 88 - 89 90 91 92 93- 94 95 96 97 98 // more get methods here public int getHour() return this. hour; ) public int getMinute() return this.minute; public int getSecond() return this.second; } { { // ToString public override string ToString(){ return string.Format("{0:02): {1:02]: [2:02)", this.hour, this.minute, this.second); فيه // next tines public MyTime NextSecond(X // check the conditions here if(this.second-59) if(this.minute59) return new MyTime((this.hour+1)%24, 0,0); else return new MyTime(this.hour, (this.minute+1)%60,0); else return new MyTime(this.hour, this.minute, this.second+1); 99 100 101 } 102 103 164 105 - 106 107 108 public MyTime NextMinute() // check the conditions here if(this.ninute==59) return new MyTime((this.hour+1)%24, , this second);

return new MyTime((this.hour+1)%24, 0,this.second); else return new MyTime(this.hour, this.ninute+1, this.second); } 10B 169 110 111 112 113 114 - 115 116 117 118 119 120 121 122 123 124 - 125 126 127 - 128 - 129 130 public MyTime NextHour() { // check the conditions here if(this.hour=23) return new MyTime(@, this.minute, this.second); else return new MyTime(this.hour+1, this.minute, this second); } // Previous times public MyTime Previous Second() { // check the conditions here if(this.second==0) { if(this.ntnute =0){ if(this.hour return new MyTime ( 23,59,59); elset return new MyTine(this.hour-1, 59, 59); } else { return new MyTime(this.hour, this.ninute-1, 0); } ) 131 ) } else{ return new MyTime(this.hour, this.minute, this second-1); 132 133 134 135 - 136 137 138 139 - 140 141 142 143 144 - 145 146 147 - 146 149 150 - ب ) public MyTime PreviousMinute({ // check if(this.minute) if(this.hour=0){ return new MyTime(23, 59, this.second); else{ return new MyTime(this.hour, 59, this.second); } } 151 } 152 153 154 - 155 156 else { return new MyTime(this.hour, this.minute-1, this second); ب 157 158 159 - 160 121 public MyTime PreviousHour(){ // check

155 } } با 152 ] 153 154 - else{ return new MyTime(this.hour, this.minute-1, this.second); 156 157 158 159 - public MyTime Previous Hour(X 160 // check 161 - if(this.hour==0){ 162 return new MyTime(23, this.minute, this.second); 163 ] 164 - else 165 return new MyTime(this.hour-1, this.minute, this.second); 166 167 ) 168 169 178 171 - public class MyTimeDemo 172 - static public void Main () { 173 //Code here 174 MyTime tine = new MyTime(12,58,58); 175 Console.WriteLine("The time is {0}",time); 176 Console.WriteLine("\nNext Hour is (O)",time. NextHour(); 177 Console.WriteLine("Next Minute is (0)", time. NextMinute()); 178 Console.WriteLine("Next Second is {0}",time. NextSecond()); 179 180 Console.WriteLine("\nPrevious Hour is {0}", time. Previous Hour()); 181 Console.WriteLine("Previous Minute is {o}" time.PrevtousMinute()); 182 Console.WriteLine("Previous Second is {0}", time. PreviousSecond); 183 184 // try another 185 Console.WriteLine("\n======== 186 time = new MyTine(23,59,59); Console.WriteLine("\nThe tine ts {0}", time); 188 Console.WriteLine("\nNext Hour is {0}", time. NextHour(); 189 Console.WriteLine("Next Minute is {0}",time. NextMinute()); 190 Console.WriteLine("Next Second is (0)",time. NextSecond()); 191 192 Console.WriteLine("\nPrevious Hour is {0}", time. Previous Hour()); 193 Console.WriteLine("Previous Minute is {0}", tine. PreviousMinute()); 194 Console.WriteLine("Previous Second is {0}", tine. PreviousSecond()); 195 196 197 198 199) 200 187 201 202 203 204

OUTPUT:

The time is 12:58:58 Next Hour is 13:58:58 Next Minute is 12:59:58 Next Second is 12:58:59 Previous Hour is 11:58:58 Previous Minute is 12:57:58 Previous Second is 12:58:57 The time is 23:59:59 Next Hour is 00:59:59 Next Minute is 00:00:59 Next Second is 00:00:00 Previous Hour is 22:59:59 Previous Minute is 23:58:59 Previous Second is 23:59:58 ...Program finished with exit code o Press ENTER to exit console.

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