java NRZ

[java]代码库

package nrz;

import java.applet.*;
import java.awt.*;
import java.util.Scanner;

public class NRZ extends Applet {
    private static final long serialVersionUID = 1L;
    int w, h, EX, EY;

    public void init() {
        w = Integer.parseInt(getParameter("width"));
        h = Integer.parseInt(getParameter("height"));
        EY = (int) ((h - 30) / 2);
        EX = (int) ((w - 30) / 4);
    }

    final static int n = 1000;

    public void paint(Graphics g) {
        int y = h / 2;
        g.setColor(Color.black);
        g.drawLine(0, y, w, y);// 画出X轴
        g.drawLine(10, 0, 10, h);// 画出Y轴
        g.drawLine(w - 10, y - 10, w, y);
        g.drawLine(w - 10, y + 10, w, y);// 画X轴的箭头
        g.drawLine(10, 0, 0, 10);
        g.drawLine(10, 0, 20, 10);// 画Y轴的箭头
        int lenx, leny;
        lenx = (w - 30) / 10;
        leny = (h - 30) / 10;

        int Int = 1;
        for (int i = 0; i < 10; i++) {

            g.drawLine(10 + i * lenx, y, 10 + i * lenx, y - 10);

        }
        for (int i = 1; i < 10; i++) {
            String ss = String.valueOf(Int);
            // double类型转换为String类型
            g.drawString(ss, 10 + i * lenx - 3, y + 20);

            Int = Int + 1;

        }// 画X轴坐标

        Int = 1;
        for (int i = 1; i < 2; i++) {
            Int = Int + 1;
            g.drawString("+V", 20, y - 3 * leny);
            g.drawString("-V", 20, y + 3 * leny + 10);

        }// 画Y轴坐标
        g.drawString("0", 10 + 2, y + 20);
        g.drawString("X", w - 10, y - 20);
        g.drawString("Y", 30, 10);

        g.setColor(Color.red);
        g.setColor(Color.red);

        System.out
                .println("Please enter a string of 0s & 1s as a signal with space between every two numbers:");
        Scanner sc = new Scanner(System.in);
        String str = sc.nextLine();
        String[] s = str.split(" ");

        Integer[] c = new Integer[s.length];
        for (int p = 0; p <= s.length; p++) {
            c[p] = Integer.parseInt(s[p]);
            System.out.println(c[p]);
            int k = (int) Math.pow(-1, c[p]);

            g.drawLine(10 + p * lenx, y + 3 * leny * k, 10 + (p + 1) * lenx, y
                    + 3 * leny * k);

        }

        new NRZ();

    }

}

//源代码片段来自云代码http://yuncode.net