ConversionDemo.java import java.util.*;//package for scanner class class Tempconversion//temperature conversion class { public void farenheattocelcius(double temp) {//method for farenheat to celcius conversion System.out.println(\"Celcius Farenheat\"); System.out.println(\"-----------------------------\"); for(int i=(int) temp;i>30;i--) { temp = ((9.0*i)/5+32);//formula for converting into celcius System.out.println(i+\" \" +temp); } } public void celciustofarenheat(double temp) {//method for converting celcius to farenheat System.out.println(\"Farenheat Celcius\"); System.out.println(\"-----------------------------\"); for(int i=(int) temp;i>=30;i=i-10) { temp = 5.0*(i - 32)/9;//formula for converting into celcius String temp1 = String.format(\"%.2f\", temp); System.out.println(i+\" \" +temp1); } } } class ConversionDemo {//main class public static void main(String[] args) {//main method Tempconversion f=new Tempconversion();//object creation f.farenheattocelcius(40);//calling method f.celciustofarenheat(120); } } output Celcius Farenheat ----------------------------- 40 104.0 39 102.2 38 100.4 37 98.6 36 96.8 35 95.0 34 93.2 33 91.4 32 89.6 31 87.8 Farenheat Celcius ----------------------------- 120 48.89 110 43.33 100 37.78 90 32.22 80 26.67 70 21.11 60 15.56 50 10.00 40 4.44 30 -1.11 Solution ConversionDemo.java import java.util.*;//package for scanner class class Tempconversion//temperature conversion class { public void farenheattocelcius(double temp) {//method for farenheat to celcius conversion System.out.println(\"Celcius Farenheat\"); System.out.println(\"-----------------------------\"); for(int i=(int) temp;i>30;i--) { temp = ((9.0*i)/5+32);//formula for converting into celcius System.out.println(i+\" \" +temp); } } public void celciustofarenheat(double temp) {//method for converting celcius to farenheat System.out.println(\"Farenheat Celcius\"); System.out.println(\"-----------------------------\"); for(int i=(int) temp;i>=30;i=i-10) { temp = 5.0*(i - 32)/9;//formula for converting into celcius String temp1 = String.format(\"%.2f\", temp); System.out.println(i+\" \" +temp1); } } } class ConversionDemo {//main class public static void main(String[] args) {//main method Tempconversion f=new Tempconversion();//object creation f.farenheattocelcius(40);//calling method f.celciustofarenheat(120); } } output Celcius Farenheat ----------------------------- 40 104.0 39 102.2 38 100.4 37 98.6 36 96.8 35 95.0 34 93.2 33 91.4 32 89.6 31 87.8 Farenheat Celcius ----------------------------- 120 48.89 110 43.33 100 37.78 90 32.22 80 26.67 70 21.11 60 15.56 50 10.00 40 4.44 30 -1.11.

1. ConversionDemo.java
import java.util.*;//package for scanner class
class Tempconversion//temperature conversion class
{
public void farenheattocelcius(double temp)
{//method for farenheat to celcius conversion
System.out.println("Celcius Farenheat");
System.out.println("-----------------------------");
for(int i=(int) temp;i>30;i--)
{
temp = ((9.0*i)/5+32);//formula for converting into celcius
System.out.println(i+" " +temp);
}
}
public void celciustofarenheat(double temp)
{//method for converting celcius to farenheat
System.out.println("Farenheat Celcius");
System.out.println("-----------------------------");
for(int i=(int) temp;i>=30;i=i-10)
{
temp = 5.0*(i - 32)/9;//formula for converting into celcius
String temp1 = String.format("%.2f", temp);
System.out.println(i+" " +temp1);
}
}
}
class ConversionDemo {//main class
public static void main(String[] args) {//main method

2. Tempconversion f=new Tempconversion();//object creation
f.farenheattocelcius(40);//calling method
f.celciustofarenheat(120);
}
}
output
Celcius Farenheat
-----------------------------
40 104.0
39 102.2
38 100.4
37 98.6
36 96.8
35 95.0
34 93.2
33 91.4
32 89.6
31 87.8
Farenheat Celcius
-----------------------------
120 48.89
110 43.33
100 37.78
90 32.22
80 26.67
70 21.11
60 15.56
50 10.00
40 4.44
30 -1.11
Solution
ConversionDemo.java

3. import java.util.*;//package for scanner class
class Tempconversion//temperature conversion class
{
public void farenheattocelcius(double temp)
{//method for farenheat to celcius conversion
System.out.println("Celcius Farenheat");
System.out.println("-----------------------------");
for(int i=(int) temp;i>30;i--)
{
temp = ((9.0*i)/5+32);//formula for converting into celcius
System.out.println(i+" " +temp);
}
}
public void celciustofarenheat(double temp)
{//method for converting celcius to farenheat
System.out.println("Farenheat Celcius");
System.out.println("-----------------------------");
for(int i=(int) temp;i>=30;i=i-10)
{
temp = 5.0*(i - 32)/9;//formula for converting into celcius
String temp1 = String.format("%.2f", temp);
System.out.println(i+" " +temp1);
}
}
}
class ConversionDemo {//main class
public static void main(String[] args) {//main method
Tempconversion f=new Tempconversion();//object creation

4. f.farenheattocelcius(40);//calling method
f.celciustofarenheat(120);
}
}
output
Celcius Farenheat
-----------------------------
40 104.0
39 102.2
38 100.4
37 98.6
36 96.8
35 95.0
34 93.2
33 91.4
32 89.6
31 87.8
Farenheat Celcius
-----------------------------
120 48.89
110 43.33
100 37.78
90 32.22
80 26.67
70 21.11
60 15.56
50 10.00
40 4.44
30 -1.11