[数据结构与算法]中国地质大学北京信息管理与信息系统——Java程序设计第二次上机part6在界面排序数组并输出实验2.3

package learning_swing;

import java.awt.GridLayout;
import java.awt.event.ActionEvent;

import javax.swing.AbstractAction;
import javax.swing.ButtonGroup;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.WindowConstants;

public class homework7 {
	static int number[]=new int[5];  //定义的数组
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		JFrame jf= new JFrame();
		jf.setLayout(new GridLayout(1,2));
		//左边
		JPanel jp1 = new JPanel();
		jp1.setLayout(new GridLayout(8,1));
		JTextField a[]=new JTextField[5];
		
		for(int i=0;i<5;i++) {
			int j=i+1;
			a[i]=new JTextField("请输入第"+j+"个数字");
			number[i]=0;
			jp1.add(a[i]);
		}
		JRadioButton b[]=new JRadioButton[3];
		b[0]=new JRadioButton("原始数据");
		b[1]=new JRadioButton("冒泡排序（从小到大）");
		b[2]=new JRadioButton("选择排序（从大到小）");
		ButtonGroup bu= new ButtonGroup();bu.add(b[0]);bu.add(b[1]);bu.add(b[2]);
		for(int i=0;i<3;i++) jp1.add(b[i]);
		//右边
		JTextArea jt1=new JTextArea(300,100);  // 写入面板
		JScrollPane js=new JScrollPane(jt1);
		
		//写监听器：
		b[0].addActionListener(new AbstractAction() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				String s="";
				for(int i=0;i<5;i++) {
					number[i]=Integer.parseInt(a[i].getText());
					s+=number[i]+"\n";
				}
				jt1.setText(s);
			}
		});
		b[1].addActionListener(new AbstractAction() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				for(int i=0;i<5;i++) {
					number[i]=Integer.parseInt(a[i].getText());
				}
				for(int i=0;i<5;i++) {
					for(int j=0;j+1<5-i;j++) {
						if(number[j]>number[j+1]) {
							int t=number[j];
							number[j]=number[j+1];
							number[j+1]=t;
						}
					}
				}
				String s="";
				for(int i=0;i<5;i++) s+=number[i]+"\n";
				jt1.setText(s);
			}
		});
		b[2].addActionListener(new AbstractAction() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				for(int i=0;i<5;i++) {
					number[i]=Integer.parseInt(a[i].getText());
				}
				for(int i=0;i<5;i++) {
					int val=number[i];
					int index=i;
					for(int j=i;j<5;j++) {
						if(number[j]>val) {
							val=number[j];
							index=j;
						}
					}
					int t=number[index];
					number[index]=number[i];
					number[i]=t;
				}
				String s="";
				for(int i=0;i<5;i++) s+=number[i]+"\n";
				jt1.setText(s);
			}
		});
		jf.add(jp1);jf.add(js);
		jf.setBounds(500,250,400,400);
		jf.setVisible(true);
		jf.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
	}
}