newjframe8.java

是一个成绩管理系统

                .addContainerGap())
        );

        jPanel18.setBounds(0, 0, 410, 220);
        jLayeredPane6.add(jPanel18, javax.swing.JLayeredPane.DEFAULT_LAYER);

        jTabbedPane2.addTab("分数段分析", jLayeredPane6);

        jPanel20.setBackground(new java.awt.Color(255, 255, 255));

        jPanel21.setBackground(new java.awt.Color(255, 255, 255));

        jLabel26.setText("班 级");
        jPanel21.add(jLabel26);

        jTextField20.setText("");
        jPanel21.add(jTextField20);

        jLabel27.setText("课 程");
        jPanel21.add(jLabel27);

        jTextField21.setText("");
        jPanel21.add(jTextField21);

        jButton8.setText("确 定");
        jPanel21.add(jButton8);

        jPanel22.setBackground(new java.awt.Color(255, 255, 255));
        jPanel23.setLayout(new BorderLayout());
        jPanel23.add(pie, BorderLayout.CENTER);

        //javax.swing.GroupLayout jPanel23Layout = new javax.swing.GroupLayout(jPanel23);
       /* jPanel23.setLayout(jPanel23Layout);
        jPanel23Layout.setHorizontalGroup(
           jPanel23Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 279, Short.MAX_VALUE)
        );
        jPanel23Layout.setVerticalGroup(
            jPanel23Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 171, Short.MAX_VALUE)
        );*/

        jComboBox1.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "饼 图", "柱状图" }));
        jComboBox1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jComboBox1ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout jPanel22Layout = new javax.swing.GroupLayout(jPanel22);
        jPanel22.setLayout(jPanel22Layout);
        jPanel22Layout.setHorizontalGroup(
            jPanel22Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel22Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jPanel23, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, 81, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap())
        );
        jPanel22Layout.setVerticalGroup(
            jPanel22Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel22Layout.createSequentialGroup()
                .addGroup(jPanel22Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel22Layout.createSequentialGroup()
                        .addGap(10, 10, 10)
                        .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addComponent(jPanel23, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                .addContainerGap())
        );

        javax.swing.GroupLayout jPanel20Layout = new javax.swing.GroupLayout(jPanel20);
        jPanel20.setLayout(jPanel20Layout);
        jPanel20Layout.setHorizontalGroup(
            jPanel20Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel20Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel20Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addComponent(jPanel22, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(jPanel21, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 390, Short.MAX_VALUE))
                .addContainerGap())
        );
        jPanel20Layout.setVerticalGroup(
            jPanel20Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel20Layout.createSequentialGroup()
                .addComponent(jPanel21, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jPanel22, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addContainerGap())
        );

        jPanel20.setBounds(0, 0, 410, 230);
        jLayeredPane7.add(jPanel20, javax.swing.JLayeredPane.DEFAULT_LAYER);

        jTabbedPane2.addTab("图形分析", jLayeredPane7);

        jTabbedPane2.setBounds(0, 0, 410, 250);
        jLayeredPane4.add(jTabbedPane2, javax.swing.JLayeredPane.DEFAULT_LAYER);

        jTabbedPane1.addTab("成绩分析", jLayeredPane4);

        jTable3.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null},
                {null, null, null, null, null, null, null}
            },
            new String [] {
                "学  号", "姓  名", "高  数", "计算机导论", "  java ", "英 语", "思想道德"
            }
        ) {
            boolean[] canEdit = new boolean [] {
                false, false, false, false, false, false, false
            };

            public boolean isCellEditable(int rowIndex, int columnIndex) {
                return canEdit [columnIndex];
            }
        });
        jScrollPane3.setViewportView(jTable3);

        jScrollPane3.setBounds(0, 0, 410, 250);
        jLayeredPane9.add(jScrollPane3, javax.swing.JLayeredPane.DEFAULT_LAYER);

        jTabbedPane1.addTab("成绩单", jLayeredPane9);

        jMenu1.setText("菜单");

        jMenuItem2.setText("作者信息");
        jMenuItem2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItem2ActionPerformed(evt);
            }
        });
        jMenu1.add(jMenuItem2);

        jMenuItem1.setText("退出");
        jMenuItem1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItem1ActionPerformed(evt);
            }
        });
        jMenu1.add(jMenuItem1);

        jMenuBar1.add(jMenu1);

        setJMenuBar(jMenuBar1);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jTabbedPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 412, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jTabbedPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 279, Short.MAX_VALUE)
        );

        java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
        setBounds((screenSize.width-420)/2, (screenSize.height-334)/2, 420, 334);
        
        
       /* jButton3.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItem1ActionPerformed(evt);
            }
        });*/
        
        
        jbt1.addActionListener(this);
        jButton1.addActionListener(this);
        jbt2.addActionListener(this);
        jbt3.addActionListener(this);
        jButton3.addActionListener(this);
        jButton2.addActionListener(this);
       
    }// </editor-fold>  
    
    public String[][] score(File file) throws IOException {
    		BufferedReader input = new BufferedReader(new FileReader(file));
    		int i = 0, j = 0;
    		String line;
    		String u = "";
    		String[][] informations = new String[60][20];
    		//line = input.readLine();
    		while ((line = input.readLine()) != null) {
    				StringTokenizer tokens = new StringTokenizer(line);
    					while (tokens.hasMoreTokens()) {
    						informations[i][j] = tokens.nextToken();
    						j++;
    					
    					}
    				i++;
    				j = 0;
    					
    		}
    		row = i - 1;
    		JOptionPane.showMessageDialog(null, row, "11", JOptionPane.INFORMATION_MESSAGE);	
    		return informations;
    }
    
    public void actionPerformed(ActionEvent e) {
    	
    	if (e.getSource() == jbt1) {
    	
    		String classNumber = jTextField3.getText().trim();
    	
    		StringTokenizer subjects = new StringTokenizer(jTextField4.getText());
    //	BufferedReader input =
    	//new BufferedReader
    		try {
    			File file = new File("Class" + classNumber + ".txt");
    	//	if (file.exists()){
    	//		JOptionPane.showMessageDialog(null, "kkk", "11", JOptionPane.INFORMATION_MESSAGE); 	
    	//	}
    			BufferedWriter output = 
    			new BufferedWriter(new FileWriter(file));
    			String sum = "";
    			while(subjects.hasMoreTokens()) {
    				
    				sum += subjects.nextToken() + " ";
    			}
    			output.write(sum);
    			output.newLine();
    			output.close();
    		}
    		catch (IOException ex) {
    			ex.printStackTrace();
    		}
    	}
    	
    		else if (e.getSource() == jButton1)	{
    			
    			try {
    			
    				File file = new File("Class" + jTextField3.getText().trim() + ".txt");
    				
    			BufferedReader input = new BufferedReader(new FileReader(file));	
    				int count = 0;
    				String line = input.readLine();
    				input.close();
    				
    			StringTokenizer tokens = new StringTokenizer(line);
    				while (tokens.hasMoreTokens()) {
    					
    					tokens.nextToken();
    					count++;
    				}
    					
    			//	
    				String string = jTextField5.getText().trim() + "  " + jTextField6.getText().trim() ;
    				 for (int i = 0; i < count; i++ )
    				 	string += " " + "-1";
    				
    				
    				//以读方式打开文件
    				BufferedWriter output =