import java.util.Random;

public class HexToDez {

	public static void main(String[] args) {
		int number=0;
		String hex = "80";
		for (int i=0; i<hex.length(); i++) {
			int x = (int)hex.charAt(i);
			if (x>=(int)'A') {
				number = number*16 +(10+x-(int)('A'));
				System.out.println(10+x-(int)('A'));
			}
			else {
				number = number*16 +(x-(int)('0'));
				System.out.println(x-(int)('0'));
			}
		}
        System.out.println(hex + " in dezimal:"+number);
        
        /*
		// TODO Auto-generated method stub
		int size = 100;
        double[] numbers = new double[size]; // create an array to store the random numbers
        
        Random rand = new Random(); // create a new instance of the Random class
        
        for (int i = 0; i < size; i++) {
            numbers[i] =  (rand.nextDouble() * 10.0); // generate a random number between 0 and 1
        }
        // --- Bubblesort
        for (int i = 0; i < size; i++) {
        	for (int j = 0; j < size-1; j++) {
        		if (numbers[j]<numbers[j+1]) {
        			double hilf  = numbers[j];
        			numbers[j]   = numbers[j+1];
        			numbers[j+1] = hilf;
        		}
        	}
        }
        // --- Student-sort
    	for (int j = 0; j < size-1; j++) {
    		if (numbers[j]<numbers[j+1]) {
    			double hilf  = numbers[j];
    			numbers[j]   = numbers[j+1];
    			numbers[j+1] = hilf;
    			j=-1;
    		}
    	}
        for (int i = 0; i < size; i++) {
        	System.out.println("numbers["+i+"]="+numbers[i]);
        }
        */
	}

}