write a class called Temperature that has two instance variables: a temp value (
ID: 3939081 • Letter: W
Question
write a class called Temperature that has two instance variables: a temp value ( a floating - point number -data type double ) and a character for the scale , either C or F . the class should have a constructor that sets each instance variable(assume 0 degree if no temp value and c if no scale ) and it should include the following:
two accessors method: one to return the degrees Celsius and the other to return the degrees Farenheit . use formalas c= 5 (F-32)/9 and F = (9(C/5)+32
3 mutators methods; one to set vaue, one to set scale and one to set both;
a comparison method : it should return -1 if the unvoking temperature is less than the argument temperature, 0 if they are equal and 1 if invoking temperature is greater than the argument one
a toString method; return a String representing the calling Temperature object. the numeric value of the temperature should be rounded to the nearest tenth of a degree.
Then write a driver program called TempTester that tests all the methods fromt the Temperature class.
ex: 0.0 degress C = 32.0 degrees F, 100 degrees C = 212.0 degrees F.
Explanation / Answer
package chegg;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.StringTokenizer;
import java.util.TreeSet;
import javax.swing.text.html.HTMLDocument.Iterator;
class Temperature
{
double temp;
char c;
Temperature()
{
temp=0;
c='c';
}
void setBoth(double t,char ch)
{
temp=t;
c=ch;
}
void setValue(double t)
{
temp=t;
}
void setScale(char ch)
{
c=ch;
}
double degreeCelsius(double f)
{
return 5 *(f-32)/9;
}
double degreeFarenheit(double c)
{
return 9*(c/5)+32;
}
int comparison(Temperature t)
{
if(t.temp<temp)
{
return 1;
}
else if(t.temp>temp)
{
return -1;
}
else
return 0;
}
public String toString(){//overriding the toString() method
return "value is: "+temp + "scale is: "+c;
}
}
public class Test {
public static void main(String args[]) throws IOException
{
Temperature t = new Temperature();
t.setBoth(10, 'c');
System.out.println(t);
}
}
Code:
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