jtabbedpane_ex.java

三个选项卡 第一个为输入成绩和学号 点确认存储 第二个能对学号进行成绩查询 第三个对输入的成绩进行排序 并输出

import javax.swing.event.*;
import javax.swing.*;
import java.awt.*;
import javax.swing.table.AbstractTableModel;
import java.util.*;
import javax.swing.table.TableModel; 
import java.awt.event.*;



public class JTabbedPane_ex extends  JFrame implements ChangeListener{
	JPanel p1,p2,p3;
	JTabbedPane tab;
	JButton confirm;
	int count=0;
    JTextArea ta=new JTextArea("学号		成绩",30,20);
	ArrayList array=new ArrayList();
	JTextField sno=new JTextField(9);
	 JTextField grade=new JTextField(3);
	 
	 
	 //将学号和成绩封装 成一information类
	    class information
{
	    	public String no;
	    	public String Grade;
	    	public information(String s,String g){
	    		no=s;
	    		Grade=g;
	    		
	    	}
	    	
	    	
	    }
	
	
		//排序成绩
		public class Mycomparator implements Comparator{
			public int compare(Object o1,Object o2) {
				information f1=(information)o1;
				information f2=(information)o2;
				int n=Integer.parseInt(f1.Grade);
	    	    int m=Integer.parseInt(f2.Grade);
	    	    if(n<m)
	    	    return 1;
	    	    else return 0;
				
			}
		}
		
		
		public class sortListener implements ActionListener{
			public void actionPerformed(ActionEvent e){
				Comparator comp = new Mycomparator();
				Collections.sort(array,comp); 
				String s5="学号      成绩\n";
				for(int i=0;i<array.size();i++){
					s5+=((information)array.get(i)).no +"      "+((information)array.get(i)).Grade+"\n";
				}
				ta.setText(s5);

			}
		}
	
	    
	
	
	
	public JTabbedPane_ex(){
		JFrame f=new JFrame("JTabbedPane_ex");
		setSize(50,50);
		setVisible(true);
		this.setLayout(new FlowLayout());
		p1=new JPanel();
		p1.setLayout(new FlowLayout());	
		
		
		
		
	    
	    class ButtonListener implements ActionListener{
			public void actionPerformed(ActionEvent e){		
			String s=sno.getText();
			String s1=grade.getText();
		
		    final information info=new information(s,s1);
			array.add(info);
			count++;	
	
		}
		};
	    		
		confirm=new JButton("确认");
		confirm.addActionListener(new ButtonListener());
		p1.add(new JLabel("学号"));		
		p1.add(sno);
		p1.add(new JLabel("成绩"));
		p1.add(grade);
		p1.add(confirm);
	
		
		

		
		
		p2=new JPanel();
		p3=new JPanel();	
		tab=new JTabbedPane();		
		tab.setTabPlacement(JTabbedPane.TOP);
		
		tab.addTab("成绩输入",p1);
		tab.addTab("成绩查询",p2);
		tab.addTab("成绩排序",p3);
		add(tab);
		
		f.getContentPane().add(tab);
		f.pack();
		f.setVisible(true);
			
		//成绩查询
				
		JButton b1=new JButton("查询");
		JLabel lb1=new JLabel("请输入学号");
		final JTextField num=new JTextField(9);
	    JLabel lb2=new JLabel("成绩为");
	    final JTextField lb3=new JTextField(3);
	    lb3.setVisible(true);
	    p2.add(lb1);
	    p2.add(num);
	    p2.add(b1);
	    p2.add(lb2);
	    p2.add(lb3);
	    
	    class jbListener implements ActionListener{
	    	public void actionPerformed(ActionEvent e){
	    	for(int i=0;i<count;i++){
	    		if(((information)array.get(i)).no.equalsIgnoreCase(num.getText()))
	    		{
	    			lb3.setText(((information)array.get(i)).Grade);
	    		}
	    	}
	    		
	    	}
	    	
	    }
	    b1.addActionListener(new jbListener());
	    
	    
	   	   
	    JButton sort=new JButton("排序");
	    

	    
	    p3.add(sort);
	   
	    JScrollPane scrollpaneTa=new JScrollPane();
	    p3.add(scrollpaneTa);
	    p3.add(ta);
	    sort.addActionListener(new sortListener());
	    
	    
	   
	    
	    
	    
	 } 	    
	

	
		
					
	

	
	  
	  
	  
	  
	    public void stateChanged(ChangeEvent e){
		
		}
		
		
		
	
public static void main(String[]  args){
		JTabbedPane_ex e=new JTabbedPane_ex();
		
}

}