I cannot get my pubilc static void to work. This is what i have? import java.uti
ID: 3653936 • Letter: I
Question
I cannot get my pubilc static void to work. This is what i have?
import java.util.*;
public class Temperature
{
private String scale;
private float temp;
/***************************************************************/
public Temperature()
{
scale = "Celcius";
temp = 0;
}
public Temperature(float newTemp)
{
if (scale.equalsIgnoreCase("C"))
{
float temp = (5 * (newTemp - 32) / 9);
newTemp = temp;
}
else if (scale.equalsIgnoreCase("F"))
{
float temp = (9 * (newTemp / 5 ) + 32 );
newTemp = temp;
}
else
System.out.println ("You entered an incorrect temperature scale. Converion can not be done. Try again.");
}
public Temperature(String newScale)
{
if (scale.equalsIgnoreCase("C"))
newScale = "Celcius";
else if (scale.equalsIgnoreCase("F"))
newScale = "Fahrenheit";
else
System.out.println ("You entered an incorrect temperature scale. Try again.");
}
public Temperature(String newScale, float newTemp)
{
if (scale.equalsIgnoreCase("C"))
{
newScale = "Celcius";
float temp = (5 * (newTemp - 32) / 9);
newTemp = temp;
}
else if (scale.equalsIgnoreCase("F"))
{
newScale = "Fahrenheit";
float temp = (9 * (newTemp / 5 ) + 32 );
newTemp = temp;
}
else
System.out.println ("Oops, something went wrong. Try again.");
}
/***************************************************************/
public String toString ()
{
return ("The temperature scale you entered is: " + scale + " "
+ "The number of degrees you entered is: " + temp + " ");
}
/***************************************************************/
public void readInput()
{
Scanner keyboard = new Scanner(System.in);
System.out.println("What is the degree system which you are using? Enter the first letter.");
scale = keyboard.nextLine();
String newScale = scale;
System.out.println("What is the number of degrees?");
temp = keyboard.nextFloat();
float newTemp = temp;
}
/***************************************************************/
/***************************************************************/
public void writeOutput()
{
System.out.println("Temperature scale that you are using: " + scale + " ");
System.out.println("Number of degrees: " + temp + " ");
}
/***************************************************************/
/***************************************************************/
public void setTemp(float newTemp)
{
temp = newTemp;
}
public void setScale(String newScale)
{
scale = newScale;
}
public void setTempAndScale(String newScale, float newTemp)
{
temp = newTemp;
scale = newScale;
}
/***************************************************************/
/***************************************************************/
public String getScale( )
{
return scale;
}
public float getTemp( )
{
return temp;
}
public String getTempAndScale( )
{
return (temp + scale);
}
/***************************************************************/
/***************************************************************/
public static void main(String[] args)
{
Temperature trialOne = new Temperature();
Scanner keyboard = new Scanner(System.in);
trialOne.readInput();
trialOne.writeOutput();
System.out.println("Set Scale is: "+ scale);
System.out.println("Set Temp is: "+ temp);
}
/***************************************************************/
/***************************************************************/
}
thanks for the help
Explanation / Answer
public class Temperature
{
private double temperature;
private char scale;
public Temperature()
{
setTemperatureAndScale('C', 0.0);
}
public Temperature(double temp)
{
setTemperatureAndScale('C', temp);
}
public Temperature (char scale)
{
setTemperatureAndScale(scale, 0.0);
}
public Temperature(char scale, double temp)
{
setTemperatureAndScale(scale, temp);
}
public double getTemperatureInCelsius()
{
if(scale == 'C')
return temperature;
else
return (temperature - 32)*5/9;
}
public double getTemperatureInFahrenheit()
{
if(scale == 'F')
{
return temperature;
}
else
return temperature * 9/5 + 32;
}
public void setTemperature(double temp)
{
temperature = temp;
}
public void setScale(char scale)
{
if(scale == 'C' || scale == 'F')
this.scale = scale;
else
throw new IllegalArgumentException("Scale input is wrong");
}
public void setTemperatureAndScale(char scale, double temp)
{
setTemperature(temp);
setScale(scale);
}
public static boolean isEqual(Temperature temp1, Temperature temp2)
{
if(temp1.getTemperatureInCelsius() == temp2.getTemperatureInCelsius())
return true;
else
return false;
}
public static boolean isGreater(Temperature temp1, Temperature temp2)
{
if(temp1.getTemperatureInCelsius() > temp2.getTemperatureInCelsius())
return true;
else
return false;
}
public static boolean isLesser(Temperature temp1, Temperature temp2)
{
if(temp1.getTemperatureInCelsius() < temp2.getTemperatureInCelsius())
return true;
else
return false;
}
public String toString()
{
return String.format("%.1f %c ", temperature , scale );
}
}
public class DriverTemperature
{
public static void main(String[] args)
{
Temperature temp1 = new Temperature();
Temperature temp2 = new Temperature('F');
Temperature temp3 = new Temperature(-40);
Temperature temp4 = new Temperature('F',-40);
Temperature temp5 = new Temperature('C',100);
Temperature temp6 = new Temperature('F',212);
temp1.setTemperatureAndScale('C', 0);
temp2.setTemperature(32);
temp3.setScale('C');
System.out.printf("%s is equal to %s : %b ",
temp1,temp2,Temperature.isEqual(temp1, temp2));
System.out.printf("%s is greater than %s : %b ",
temp1,temp2,Temperature.isGreater(temp1, temp2));
System.out.printf("%s is less than %s : %b ",
temp1,temp2,Temperature.isLesser(temp1, temp2));
System.out.printf("%s is equal to %s : %b ",
temp3,temp4,Temperature.isEqual(temp3, temp4));
System.out.printf("%s is greater than %s : %b ",
temp3,temp4,Temperature.isGreater(temp3,temp4));
System.out.printf("%s is less than %s : %b ",
temp3,temp4,Temperature.isLesser(temp3,temp4));
System.out.printf("%s is equal to %s : %b ",
temp5,temp6,Temperature.isEqual(temp5,temp6));
System.out.printf("%s is greater than %s : %b ",
temp5,temp6,Temperature.isGreater(temp5,temp6));
System.out.printf("%s is less than %s : %b ",
temp5,temp6,Temperature.isLesser(temp5,temp6));
}
}
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