package test;



import java.lang.reflect.Field;

import java.lang.reflect.InvocationTargetException;

import java.lang.reflect.Method;



public class Test3 {

	String str1 = "111";

	String str2 = "222";

	String str3 = "333";

	char[] c = {'a','b','c','d'};

	public Test3(String str){

		this.str3 = str;

	}

    public static void main(String[] args) {

    	Test3 t = new Test3("333");

    	Class c = t.getClass();

    	Method[] m = c.getDeclaredMethods();

    	Field[] f = c.getDeclaredFields();

    	for(int i=0;i<f.length;i++){

    		if(f[i].getType()==char[].class) continue;

			try {

				//列印所有屬性值  如果是靜態屬性，可以直接用Test3.class代替

				System.out.println(f[i].getName() + "  " + f[i].get(t).toString());

			} catch (IllegalArgumentException e) {

				e.printStackTrace();

			} catch (IllegalAccessException e) {

				e.printStackTrace();

			}

    	}

    	for(int i=0;i<m.length;i++){

    		if(m[i].getReturnType()==String.class){

    			try {

    				//列印所有為String的方法返回值

					System.out.println(m[i].getName() + "  " +m[i].invoke(t));

				} catch (IllegalArgumentException e) {

					e.printStackTrace();

				} catch (IllegalAccessException e) {

					e.printStackTrace();

				} catch (InvocationTargetException e) {

					e.printStackTrace();

				}

    		}

    	}

        TriFunc tri = new TriFunc();

        // 生成一塊25×100的畫布

         Canvas canvas = new Canvas(30, 100);

        // 畫sin曲線，週期為2

        tri.drawSin(canvas, 2);

        canvas.printCanvas();  

        System.out.println();

        canvas.reset();

        // 畫cos曲線，週期為2

        tri.drawCos(canvas, 2);

        canvas.printCanvas();

    }

	public String getStr1() {

		return str1;

	}

	public String getStr2() {

		return str2;

	}

	public String getStr3() {

		return str3;

	}

	@Override

	public int hashCode() {

		final int PRIME = 31;

		int result = super.hashCode();

		result = PRIME * result + ((str1 == null) ? 0 : str1.hashCode());

		result = PRIME * result + ((str2 == null) ? 0 : str2.hashCode());

		result = PRIME * result + ((str3 == null) ? 0 : str3.hashCode());

		return result;

	}

	@Override

	public boolean equals(Object obj) {

		if (this == obj)

			return true;

		if (!super.equals(obj))

			return false;

		if (getClass() != obj.getClass())

			return false;

		final Test3 other = (Test3) obj;

		if (str1 == null) {

			if (other.str1 != null)

				return false;

		} else if (!str1.equals(other.str1))

			return false;

		if (str2 == null) {

			if (other.str2 != null)

				return false;

		} else if (!str2.equals(other.str2))

			return false;

		if (str3 == null) {

			if (other.str3 != null)

				return false;

		} else if (!str3.equals(other.str3))

			return false;

		return true;

	}

}



class TriFunc {



    /**

     * 畫sin曲線

      * @param canvas 畫布

      * @param period 曲線週期

      */

    public void drawSin(Canvas canvas, double period) {        

        char[][] chars = canvas.getCanvas();

        // x 軸的比率

         double xRatio = (2 * period * Math.PI) / (canvas.getWidth() - 1);

        // y 軸的放大倍率

         int yMulti = (canvas.getHeight() - 1) / 2;

        for(int i = 0; i < canvas.getWidth(); i++) {

            // 將陣列索引對映為橫座標值

              double k = (i - canvas.getWidth() / 2) * xRatio;

            // 將sin值對映為陣列索引

              int h = yMulti - (int)Math.round(Math.sin(k) * yMulti);

            chars[h][i] = Canvas.FILL_CHAR;

        }

    }

    

    /**

     * 畫cos曲線

      * @param canvas 畫布

      * @param period 曲線週期

      */

    public void drawCos(Canvas canvas, double period) {

        char[][] chars = canvas.getCanvas();

        double xRatio = (2 * period * Math.PI) / (canvas.getWidth() - 1);

        int yMulti = (canvas.getHeight() - 1) / 2;

        for(int i = 0; i < canvas.getWidth(); i++) {

            double k = (i - canvas.getWidth() / 2) * xRatio;

            int h = yMulti - (int)Math.round(Math.cos(k) * yMulti);

            chars[h][i] = Canvas.FILL_CHAR;

        }

    }

}





class Canvas {

    

    private int height;

    private int width;

    private char[][] canvas;   

    

    // 填充字元

     public static char FILL_CHAR = '#';

    // 空白字元

     public static char BLANK_CHAR = ' ';

    

    /**

     * 構建一塊畫布

      * @param height

     * @param width

     */

    public Canvas(int height, int width) {

        // 由於需要畫座標軸，所以得采用奇數

         this.height = height % 2 == 0 ? height + 1 : height;

        this.width = width % 2 == 0 ? width + 1 : width;               

        init();

    }

    

    /**

     * 初始化畫布

      */

    private void init() {

        this.canvas = new char[height][width];

        for(int i = 0; i < height; i++) {

            for(int j = 0; j < width; j++) {

                canvas[i][j] = BLANK_CHAR;

            }

        }

        addAxis();

    }

    

    /**

     * 新增座標軸

      */

    private void addAxis() {

        // 新增橫座標

         int y = height / 2;

        for(int x = 0; x < width; x++) {

            canvas[y][x] = '-';

        }

        // 新增縱座標

         int xx = width / 2;

        for(int yy = 0; yy < height; yy++) {

            canvas[yy][xx] = '|';

        }

        // 新增原點

         canvas[y][xx] = '+';

    }

    

    /**

     * 輸出畫布

      */

    public void printCanvas() {

        for(int i = 0; i < height; i++) {

            for(int j = 0; j < width; j++) {

                System.out.print(canvas[i][j]);

            }

            System.out.println();

        }

    }

    

    /**

     * 清空畫布

      */

    public void reset() {

        init();

    }

    

    public int getHeight() {

        return height;

    }

    public int getWidth() {

        return width;

    }



    public char[][] getCanvas() {

        return canvas;

    }    

}