java成绩管理系统（java写一个管理系统）

电竞比分源码专营
我这边有个可视化编程的当初的上机实验可采纳import java.awt.*;import java.awt.event.*;public class Test extends Frame implements TextListener,ItemListener,ActionListener,WindowListener{ static TextArea ta1=new TextArea(" ",10,1,TextArea.SCROLLBARS_NONE); static TextArea ta2=new TextArea(" ",10,1,TextArea.SCROLLBARS_NONE); static Checkbox chk_g1=new Checkbox("男"); static Checkbox chk_g2=new Checkbox("女"); static Checkbox g=new Checkbox(); static Choice cho1=new Choice(); static Choice cho2=new Choice(); static Button bun1=new Button("增加"); static Button bun2=new Button("删除"); static List lst=new List(); static Test frm=new Test(); public static void main(String[] args) { Test frm=new Test(); CheckboxGroup grp=new CheckboxGroup(); frm.setLayout(null); frm.setTitle("学生信息输入窗口"); frm.setBounds(100,100,400,400); lst.setBounds(10,50,180,300); ta1.setBounds(210,50,180,20); ta2.setBounds(210,100,180,20); chk_g1.setBounds(210,150,80,40); chk_g2.setBounds(300,150,80,40); cho1.setBounds(210,200,180,40); cho2.setBounds(210,250,180,40); bun1.setBounds(210,300,80,40); bun2.setBounds(300,300,80,40); chk_g1.setCheckboxGroup(grp); chk_g2.setCheckboxGroup(grp); cho1.add("计算机科学与技术"); cho1.add("金融系"); cho2.add("金融理财"); cho2.add("软件工程"); cho2.add("网络技术"); frm.setBackground(Color.lightGray); ta1.setBackground(Color.lightGray); ta2.setBackground(Color.lightGray); lst.setBackground(Color.lightGray); chk_g1.setBackground(Color.lightGray); chk_g2.setBackground(Color.lightGray); cho1.setBackground(Color.lightGray); cho2.setBackground(Color.lightGray); bun1.setBackground(Color.lightGray); bun2.setBackground(Color.lightGray); frm.add(ta1); frm.add(ta2); frm.add(chk_g1); frm.add(chk_g2); frm.add(cho1); frm.add(cho2); frm.add(bun1); frm.add(bun2); frm.add(lst); ta1.addTextListener(frm); ta2.addTextListener(frm); chk_g1.addItemListener(frm); chk_g2.addItemListener(frm); cho1.addItemListener(frm); cho2.addItemListener(frm); bun1.addActionListener(frm); bun2.addActionListener(frm); lst.addItemListener(frm); frm.addWindowListener(frm); frm.setVisible(true); } public void windowOpened(WindowEvent e){} public void windowActivated(WindowEvent e){} public void windowIconified(WindowEvent e){} public void windowDeiconified(WindowEvent e){} public void windowClosing(WindowEvent e) { frm.dispose(); System.exit(0); } public void windowDeactivated(WindowEvent e){} public void windowClosed(WindowEvent e){} public void textValueChanged(TextEvent e) { } public void itemStateChanged(ItemEvent e) { } public void actionPerformed(ActionEvent e) { Button but=(Button)e.getSource(); if(but==bun1) { String text1=ta1.getText(); String text2=ta2.getText(); String c1=cho1.getSelectedItem(); String c2=cho2.getSelectedItem(); if(chk_g1.getState()) { lst.add(text1+" "+text2+" "+chk_g1.g签名系统etLabel()+" "+c1+" "+c2); } else if(chk_g2.getState()) { lst.add(text1+" "+text2+" "+chk_g2.getLabel()+" "+c1+" "+c2); } } else if(but==bun2) { String B=lst.getSelectedItem(); lst.remove(B); } }}
2021-12-20 06:59:29

苏棠源码
2021-12-20 06:57:26

xiaozhang
java想通过list集合写一个学生成绩管理系统,List students = new ArrayList(); 增：students.add(student); 删：用Iterator iterator = students.iterator(); 进行迭代，发现指定学号执行iterator.remove()；循环终止改：和删一样用iterator遍历，发现指定学号执行get,set修改属性
2021-12-20 06:57:26