Question

A breakdown of the problem is as follows:

• Class name:                        Temperature
  
• Instance variables:           temp (double) and tempScale (char; either ‘C’ or ‘F’)
  
• Constructor methods:    Temperature() – sets temp to 0 Celsius
  
                                                  Temperature(double initialTemp) – sets temp
  
                                                  Temperature(char tempType) – sets tempScale to ‘C’ or ‘F’)
  
                                                  Temperature(double initialTemp, char tempType) --
                                                                  sets temp and tempScale to ‘C’ or ‘F’)
  
• Accessor methods:          getTemp – returns value of temp for the object
                                                  getTempScale– returns temperature scale (‘C’ or ‘F’)
  
• Mutator methods:           setTemp – sets the value of temp
                                                  setScale – sets the value of tempScale
                                                  setTempSystem – sets both the value of temp and tempScale
  
• Comparison methods:   equals – determines if argument is equal to current temperature
                                                  greaters—determines if argument is greater than current temperature
                                                  lessers—determines if argument is less than current temperature
  
  Allow for conversion using temperature formulas prior to doing comparison.
  DegreesC = 5 / 9 * (degreesF – 32)            DegreesF = (9/5 * (degreesC) ) + 32
  
• Additional method:         tostring – returns a string that is representative of the object

Write a driver program(s) that tests all methods and constructors and at least test

• 0.0 C      =             32.0 F
• -40.0 C =             -40.0 F
• 100.0 C =             212.0 F

Submit two files (Temperature.java and TemperatureDemo.java. Both files must compile without errors.
                                               
                                               

Answer 1

Temperature.java

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

package shape;

public class Temperature {
   double temp;
   char tempScale;
   //Constructor methods
   Temperature()
   {
       temp=0;
   }
   Temperature(double initialTemp)
   {
       temp=initialTemp;
   }
   Temperature(char tempType)
   {
       tempScale=tempType;
   }
   Temperature(double initialTemp, char tempType)
   {
       temp=initialTemp;
       tempScale=tempType;
   }
  
   //Accessor methods
   public double getTemp() {
       return temp;
   }
   public char getTempScale() {
       return tempScale;
   }
  
   //Mutator methods
   public void setTemp(double temp) {
       this.temp = temp;
   }
  
   public void setTempScale(char tempScale) {
       this.tempScale = tempScale;
   }
  
   public void setTempSystem(double temp,char tempScale) {
       this.temp = temp;
       this.tempScale = tempScale;
   }
  
  
   //Comparison methods
   public boolean equals(Temperature ob)
   {
       double tempC1,tempC2;
      
       //convert temp to celsius
       if(ob.getTempScale()=='F')
       {
           tempC1= 5 / 9 * (ob.getTemp()-32);
       }
       else
       {
           tempC1=ob.getTemp();
       }
      
       if(this.getTempScale()=='F')
       {
           tempC2= 5 / 9 * (this.getTemp()-32);
       }
       else
       {
           tempC2=this.getTemp();
       }
      
       if(tempC1==tempC2)
           return true;
       else
           return false;
   }
  
   public boolean greaters(Temperature ob)
   {
double tempC1,tempC2;
      
       //convert temp to celsius
       if(ob.getTempScale()=='F')
       {
           tempC1= 5 / 9 * (ob.getTemp()-32);
       }
       else
       {
           tempC1=ob.getTemp();
       }
      
       if(this.getTempScale()=='F')
       {
           tempC2= 5 / 9 * (this.getTemp()-32);
       }
       else
       {
           tempC2=this.getTemp();
       }
      
       if(tempC1>tempC2)
           return true;
       else
           return false;
   }
  
   public boolean lessers(Temperature ob)
   {
double tempC1,tempC2;
      
       //convert temp to celsius
       if(ob.getTempScale()=='F')
       {
           tempC1= 5 / 9 * (ob.getTemp()-32);
       }
       else
       {
           tempC1=ob.getTemp();
       }
      
       if(this.getTempScale()=='F')
       {
           tempC2= 5 / 9 * (this.getTemp()-32);
       }
       else
       {
           tempC2=this.getTemp();
       }
      
       if(tempC1<tempC2)
           return true;
       else
           return false;
   }
  
  
  
   //tostring()
   @Override
   public String toString() {
       return "Temperature [temp=" + temp + ", tempScale=" + tempScale + "]";
   }
  

}

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

TemperatureDemo.java

package shape;

public class TemperatureDemo {

   public static void main(String[] args) {
       // TODO Auto-generated method stub
      
       Temperature t1=new Temperature(); //Temperature()
       t1.setTempScale('C'); // setScale
      
      
       Temperature t2=new Temperature(32,'F'); // Temperature(double initialTemp, char tempType)
      
       //tosting()
       System.out.println(t1);
       System.out.println(t2);
       //equals()
       boolean b=t1.equals(t2);
       if(b==true)
           System.out.println("Both temp are equal");
       else
           System.out.println("Both temp are not equal");
      
       Temperature t3=new Temperature(); //Temperature()
       t3.setTemp(-40); // setTemp
       t3.setTempScale('C'); //setScale
      
       Temperature t4=new Temperature(); //Temperature()
       t4.setTempSystem(-40,'F'); // setTempSystem – sets both the value of temp and tempScale
      
       b=t3.greaters(t4);
       if(b==true)
           System.out.println(t4+" is greater than "+t3);
       else
           System.out.println(t4+" is less than "+t3);
      
       Temperature t5=new Temperature(100); // Temperature(double initialTemp) – sets temp
       t5.setTempScale('C');
      
       Temperature t6=new Temperature('F'); // Temperature(double initialTemp) – sets temp
       t6.setTemp(212);
      
       b=t5.lessers(t6);
       if(b==true)
           System.out.println(t6+" is less than "+t5);
       else
           System.out.println(t6+" is greater than "+t5);

   }

}

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

Output

- 0 X Java - Shape/src/shape/TemperatureDemojava - Eclipse Eile Edit Source Relator Navigate Search Project Bur Window Help Quick Access Java V O Temperature.java D Temperature Deme.java | t3.setTemp(-40); // Set Temp t3..setTempScale('c'); //setScale Temperature ti-new Temperature (); //Tauperature t:4.setTemp Syst.cm(-40, 'F'); // set.Tempsystem - sets both the value of temp and tempscale -t3.greaters(+4): if (b==true) System.out.println(t41" is greater than it 3); else System.out.println(t.4+" is less than "+t3); > > v Temperature t5-new Temperature (100); // t5.setTempScale('c'); Temperature (double initialTemp) - sets temp Temperature to-new Temperature (''); // t:6.setTemp (212); Temperature (double initialTemp) - sets temp Navigator > W Validation java vector.java D Vehicle Test.java classpath project a.txt bracket 1.txt shape settings bin src shape Account.java Animal.java Darry1.java DiceRollFrequencyjava Isosceles.java D LotteryGame.java Maina MainClass.java NumberFrequency.java PayFindjava Person.java I PrintMethodsjava D Problem2.java Right.java Rightisoscelesjava Searchsetjava D ShapeRunner.java Sortedlist.java Student.java TaxCalculator.java Temperature.java Temperature Demnjava Trianglejava TrioPlanner.java User Name Validationjava b-t5.lessers (to: if (b==true) System.out.println(18" is less than 105); else System.out.printlnit.6+" is greater than "+t5); Console terminated TemperatureDemo lava Application CA Program Filesilavajre 1.8.0 211\binjavaw. (28-Oct-2019 8:25:24 am) Temperature (temp=0.0, tcmpScale=C] TemperaLuce Lemp=32.0, LeapScale=1 Both temp are equal Temperature (t.cmp=-40.0, tompscalc=F) is greater than Temperature (tempo 40.0, trompecalc=) TemperaLure (Lemp=212.0, LempScale=e] is less Lhan TemperaLure (Lemp=100.0, LempScale=e] Wntable Smart Insert 47:34 Type here to search AGDG4 ENG 0826 AM 28-10-2019 6