Thank you for the help greatly appreciate it

Thank you i can now take in the the char, i put an 's' at the end of arg and i made nextLine(); to next(); one more question now my program wont make the letter capital why is that?

when i put in the numbers it crashes right after when it gets to the two methods i wrote.

so i'm getting this to run but it says i still have errors

import java.util.Scanner; 

public class HeatIndexCalculator {
	   public int currentTemp;
	    public double currenHumidity;
	  	double heatIndex;
	    double calculatedHeatIndex;
		double c1 =     -42.379;
		double c2 =  2.04901523;
		double c3 = 10.14333127;
		double c4 =  -.22475541;
		double c5 =  -.00683783;
		double c6 =  -.05481717;
		double c7 =   .00122874;
		double c8 =  -.00085282;
		double c9 =  -.00000199;
		
		public double calculateHeatIndex(int currentTemp, double currentHumidity){
			double one;
			double two;
			double three;
			double four;
			one = c1+c2*currentTemp+c3*currentHumidity;
			two = c4*currentTemp*currentHumidity+c5*(currentTemp*currentTemp);
			three= c6*(currentHumidity*currentHumidity )+c7*(currentTemp*currentTemp)*currentHumidity;
			four = c8*currentTemp*(currentHumidity*currentHumidity)+c9*(currentTemp*currentTemp)*(currentHumidity*currentHumidity);
			heatIndex=one+two+three+four;
			return heatIndex;
			
		}
		
		public void printHeatIndex(int currentTemp, double currentHumidity){
			
		
			
			System.out.printf("At a temperature of %i F and a humidity of %i percent\n",currentTemp,currentHumidity);
			System.out.printf("It actually feels like:%i F", calculateHeatIndex(currentTemp,currentHumidity));
		
		
		}
		
		public static void main(String[] arg){
			Scanner input = new Scanner (System.in);
			int a;
			double b;
			System.out.println("Please enter the current temperature in degrees fahrenheit");
			a=input.nextInt();
			System.out.println("please enter the current humidity as a percentage");
			b=input.nextDouble();
			input.close();
			HeatIndexCalculator test1 = new HeatIndexCalculator();
			test1.calculateHeatIndex(a, B)/>;
	        test1.printHeatIndex(a, B)/>;
		
			
		}
		
}