Thread: Need some help please

Hi Im new to everything the forum and java. But anyways I need some help with my coding. I need my program to to have a max value of 212 and convert a value from fahrenheit to celsius and then to kelvin, also feet to inches and pounds to stones. I also need to it say if the value is out of range for ex. 213 is out of range, and that a value is not valid ex. abs is not a valid entry.

Heres my code so far.

        import java.util.Scanner;
 
public class Project1 {
	private static final int MAX_VALUE = 212;
 
 
 
	public static void main(String[] args) {
 
 
		//Declare constants
		final double CS = (5.0 / 9);
		final double ME = 0.3048;
		final double KL = 0.4536;
 
		//Declare variables
		Scanner input = new Scanner(System.in);
		String entry;
		int fahrenheit, feet, pounds, count = 0, guess = -1, number;
		double fahrenheit1, feet1, pounds1;
 
		System.out.println(" J A ");
		System.out.println(" Project Title ");
 
		//Get input
		System.out.println("Enter a temperature in fahrenheit (integer): ");
		fahrenheit1 = input.nextInt();
		System.out.println("Enter a distance in feet (integer): ");
		feet1 = input.nextInt();
		System.out.println("Enter a weight in pounds (integer): ");
		pounds1 = input.nextInt();
 
		number = getRandomNumber (MAX_VALUE);
		System.out.println("Kelvin, Inches, Stones");
		while (guess != number) {
			System.out.println("\nEnter a Fahrenheit temperature between 0 and " + "MAX_VALUE" + ": ");
 
		entry = input.next ();
		if(validInput(entry)) {
			count++;
			guess = Integer.parseInt(entry); }
			else if (guess <= number) {
					System.out.println("The entered value is invalid");
			}
 
 
		//Conversions
		double celsius = (CS) * (fahrenheit1 - 32);
		double meters = (ME) * (feet1);
		double kilograms = (KL) * (pounds1);
		double Kelvin = (fahrenheit1 + 459.67)* 5/9;
		double inches = (feet1 * 12);
		double stones = (pounds1 * 0.0714285714);
 
		//Display results
		System.out.println("Fahrenheit "  +  fahrenheit1 +  "is"  + celsius +  " in Celsius"  +  Kelvin  + " in Kelvin ");
		System.out.println("Feet " + feet1 + "is" + meters + "in Meters" + "is" + inches + "in Inches");
		System.out.println("Pounds " + pounds1 + "is" + kilograms + "in Kilograms" + "is" + stones + "in Stones");
 
 
 
 
		}
 
	}
 
	private static boolean validInput(String entry) {
		// TODO Auto-generated method stub
		boolean isValid = false;
		return isValid = false;
	}
 
 
 
	private static int getRandomNumber(int MAX_VALUE) {
		// TODO Auto-generated method stub
		return 0; }

My code runs and compiles I just need it to say whether or not the value entered is in range and it will convert the entry or that it is out of range or invalid. If that makes sense.

The entered value is invalid
Fahrenheit 212.0is100.0 in Celsius373.15000000000003 in Kelvin
Feet 100.0is30.48in Metersis1200.0in Inches
Pounds 100.0is45.36in Kilogramsis7.14285714in Stones

those are my results. No matter what I put in it still comes up with those exact results. It asks for a value in each fahrenheit, foot, and pound. My question is how do i fix this? How do I code it to where I can enter any value between 0 and the max value (212) and it runs the program and doesnt say the entered value is invalid unless it actually is. Sorry Im really new to this and even confused a little on how to word the question at times.

How do I add the highlight tags on the forums and maybe that could help? I believe if I'm answering this right, return isValid = false.

Enter a Fahrenheit temperature (integer) [0-212] : 212
Enter a distance in feet (integer) [0-100] : 100
Enter a weight in pounds (integer) [0-100] : 100
Fahrenheit 212.0is100.0 in Celsius373.15000000000003 in Kelvin
Feet 100.0is30.48in Metersis1200.0in Inches
Pounds 100.0is45.36in Kilogramsis7.14285714in Stones

Enter a fahrenheit temp (integer) [0-212] : 213
The entered temp value is out of range [0-212]

I need my program to do that.
I fixed the quote up there too.
Sorry if this is confusing you, im lost on how to fix it.

Ok i'll read that and see what I can do. Thanks.

--- Update ---

Im still not getting anywhere. Everything I change either tells me to delete it or it gives me the same damn answer of any value i put in..