NEED help converting this code from Celsius to Fahrenheit

import javax.swing.JOptionPane;

int FREEZE_F=32;
int BOIL_F=212;
int temp ;
String scale;
String answer= JOptionPane.showInputDialog("Enter the temperature in degrees: ");
temp= Integer.parseInt(answer);
scale = JOptionPane.showInputDialog("Enter C for Celsius or F for Fahrenheit: ");
if (scale.equals(“F”))
{
if (temp <= FREEZE_F)
println(“Solid”);
else if (temp>= BOIL_F)
println(“Gas”);
else
println(“liquid”);
}