drawrectangles1.java

学生成绩管理系统：能输入学科

import java.awt.*;
import javax.swing.*;
import javax.swing.*;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author HSM
 */

  public class DrawRectangles1 extends JPanel{

    private int[] shu=new int[5];
	private int[] temp=new int[5];
	public DrawRectangles1(int[] shu){
		
		this.shu=shu;
		temp[0]=250-shu[0]*200/25;
		temp[1]=250-shu[1]*200/25;
		temp[2]=250-shu[2]*200/25;
		temp[3]=250-shu[3]*200/25;
		temp[4]=250-shu[4]*200/25;
	}
        @Override
	protected void paintComponent(Graphics g){
		super.paintComponent(g);
		g.drawString("人数",10,20);
			g.drawString("25",10,50);
			g.drawString("20",10,90);
			g.drawString("15",10,130);
			g.drawString("10",10,170);
			g.drawString("5",10,210);
			g.drawString("0",10,250);
			g.drawString("<60分",50,265);
			g.drawString("60-69分",120,265);
			g.drawString("70-79分",190,265);
			g.drawString("80-89分",260,265);
			g.drawString("≥90分",330,265);
			
			g.setColor(Color.gray);
			g.fillRect(30,40,355,210);
			g.setColor(Color.orange);
			g.fillRect(50,temp[0],35,250-temp[0]);
			g.fillRect(120,temp[1],35,250-temp[1]);
			g.fillRect(190,temp[2],35,250-temp[2]);
			g.fillRect(260,temp[3],35,250-temp[3]);
			g.fillRect(330,temp[4],35,250-temp[4]);
				
	}
   }