Problem in terminating the program

Question

hi,
in the following code, the paint method is executing always and the prog is not terminating, i need to call the method cycles and get the value returned and process it in the paint method.
but the method paint is not terminating,
can u help me to solve the problem
import java.io.*;
import java.util.*;
import java.awt.*;
import java.lang.*;
public class wheel1 extends Frame{
    int cen1 =250;
    int cen2 =250;
    int r  =200;
    int c1 = cen1 - r;
    int c2 = cen2 - r;
    double a = (100 * Math.PI)/180 ;
    String description = "Total Residues";                  String Coloring = "Residues by Color";
    String alip = "No. of Aliphatic Aminoacids   =";        String aliph = "Aliphatic Aminoacids";
    String arom = "No. of Aromatic  Aminoacids  =";         String aroma = "Aromatic  Aminoacids";
    String pola = "No. of Polar     Aminoacids   =";        String polar = "Polar     Aminoacids";
    String acid = "No. of Acidic    Aminoacids   =";        String acidi = "Acidic    Aminoacids";
    String basi = "No. of Basic     Aminoacids   =";        String basic = "Basic     Aminoacids";
    String uniq = "No. of Unique    Aminoacids   =";        String uniqu = "Unique    Aminoacids";
    int ali,aro,pol,aci,bas,uni = 0;
    String al,ar,po,ac,ba,un;
    //processing the sequence
    String sequence = readsequence();
    char[] seq1 = sequence.toCharArray();
    int len = seq1.length;
    int cycle;
    int[] c = new int[6];
    double[] x = new double[len +1];
    double[] y = new double[len +1];
    int[] X = new int[len +1];
    int[] Y = new int[len +1];
    String leng =Integer.toString(len);
    public wheel1() {
        super("wheel1");
        setSize(1350, 1350);
        repaint();
    public String readsequence(){
        String residues ="";
        try{
            // FileReader f = new FileReader("fasta.txt");
            InputStreamReader isr = new  InputStreamReader(System.in);
            BufferedReader fasta = new BufferedReader(isr);
            System.out.println("Maximum Length of the sequence for wheel is 108");
            System.out.println("Enter the sequence :");
            residues = fasta.readLine();
            residues = fasta.readLine();
//            do{
//            sequence= fasta.readLine();
//            sequence += sequence;
//            }while(sequence!=null);
        }catch(Exception e) {
            //System.err.println(e.getMessage());
            e.printStackTrace();
        return residues;
    public int cycles(){
        String cyc = "";
        cycle = len/18;
        int cycleno = 0;
        //int temp = 0;
        char cywh = ' ';
        System.out.println("Possible No of cycles :"+cycle);
        try{
            InputStreamReader isr1 = new  InputStreamReader(System.in);
            BufferedReader br = new BufferedReader(isr1);
            System.out.println("Enter the cycle no required as character");
            System.out.println("For cycle 1 press o");
            System.out.println("For cycle 2 press t");
            System.out.println("For cycle 3 press h");
            System.out.println("For cycle 4 press f");
            System.out.println("For cycle 5 press i");
            System.out.println("For cycle 6 press s");
            cyc = br.readLine();
            char[] cywheel = cyc.toCharArray();
            cywh = cywheel[0];
            //cycleno = Integer.parseInt(cyc);
        } catch(IOException e){
            e.printStackTrace();
        //if(cycle >= 0) {
        //temp = cycle;
        for(int i = 0; i<=cycle; i++){
            if(cycle<0){
                c[i] =cycle;
                cycle --;
                //i++;
                System.out.println("i and cycle is :"+i+ "  " +cycle);
        switch (cywh){
            case 'o':
                //repaint();
                System.out.println("REACH");
                break;
            case 't':
                cycleno = 1*18;
                System.out.println("REACH");
                //repaint();
                break;
            case 'h':
                cycleno = 2*18;
                System.out.println("REACH");
                //repaint();
                break;
            case 'f':
                cycleno = 3*18;
                System.out.println("REACH");
                //repaint();
                break;
            case 'i':
                cycleno = 4*18;
                System.out.println("REACH");
                //repaint();
                break;
            case 's':
                cycleno = 5*18;
                System.out.println("REACH");
                //repaint();
                break;
        return cycleno;
    public void paint(Graphics seq){
        System.out.println("Length of the sequence is :"+len);
        seq.drawOval(c1 ,c2, 2*(r),2*(r));
        int cy = cycles();
        int a = cy;
        //System.out.println("cycle no :"+cy);
        int destiny = cy +18;
        System.out.println("cy and destiny is :"+cy + "  "+destiny);
        for(int cycle =a; cycle < destiny; cycle++) {
            System.out.println("cycle is :"+cycle);
            x[cycle] = cen1 + (r+7) * Math.cos(a *cycle);
            y[cycle] = cen2 + (r+7) * Math.sin(a *cycle);
            X[cycle] = (int)x[cycle];
            Y[cycle] = (int)y[cycle];
            //for different colors
            switch(seq1[cycle]) {
                //aliphatic residues
                case 'A' :
                case 'I' :
                case 'L' :
                case 'V' :
                    ali++;
                    seq.setColor(Color.cyan);
                    break;
                //aromatic residues
                case 'F' :
                case 'W' :
                case 'Y' :
                    aro++;
                    seq.setColor(Color.YELLOW);
                    break;
                //polar residues
                case 'N' :
                case 'C' :
                case 'Q' :
                case 'M' :
                case 'S' :
                case 'T' :
                    pol++;
                    seq.setColor(Color.BLUE);
                    break;
                //acidic residues
                case 'D' :
                case 'E' :
                    aci++;
                    seq.setColor(Color.MAGENTA);
                    break;
                //basic residues
                case 'R' :
                case 'H' :
                case 'K' :
                    bas++;
                    seq.setColor(Color.green);
                    break;
                //unique residues
                case 'G' :
                case 'P' :
                    uni++;
                    seq.setColor(Color.orange);
                    break;
                default:
                    seq.setColor(Color.black);
                    break;
            al = Integer.toString(ali);
            un = Integer.toString(uni);
            ba = Integer.toString(bas);
            ac = Integer.toString(aci);
            po = Integer.toString(pol);
            ar = Integer.toString(aro);
            seq.fillOval(X[cycle]-8,Y[cycle]-8,16,16);
            seq.setColor(Color.BLACK);
            seq.drawString(seq1[cycle]+"",X[cycle],Y[cycle]-9);
    public static void main(String args[]) {
        wheel1 wheel = new wheel1();
        wheel.show();
}

Answer 1

paint() is calling cycles(), cycles() is asking the command prompt for input.
Is this a GUI app or not?
Work out what you want to do and then write code that does it.