「录入信息java」录入信息是什么工作内容
本篇文章给大家谈谈录入信息java，以及录入信息是什么工作内容对应的知识点，希望对各位有所帮助，不要忘了收藏本站喔。
本文目录一览：
java如何显示录入的信息？
//可以试试这个
for(String s : students) {
System.out.println(s);
}
用Java编写学生录入信息的程序
这里有一个类
实现学生学号，数学，语文，英语成绩录入
并且计算平均成绩，按照平均成绩高低输出信息
你可以改改！
//实现简单的学生信息输入输出和初步的成绩排序
public class Student {
private int id; //学号
private int mathScore; //数学成绩
private int chinScore; //语文成绩
private int foreScore; //外语成绩
public Student() {
id = 0;
mathScore = 0;
chinScore = 0;
foreScore = 0;
}
public Student(int newId, int newMathScore, int newChinSvore,
int newForeScore) {
id = newId;
mathScore = newMathScore;
chinScore = newChinSvore;
foreScore = newForeScore;
}
public double getAverageScore() { //求平均成绩
double averageScore = ((double) mathScore + chinScore + foreScore) / 3;
return averageScore;
}
public void output(Student student) { //输出对象的内容
System.out.println(" " + student.id + " " + student.mathScore +
" " + student.chinScore + " "
+ student.foreScore + " " +
student.getAverageScore());
}
public int max(Student a[], int n) { //Student类对象数组的前n项中的成绩最大值的索引
int position = 0;
for (int i = 1; i n; i++) {
if (a[i].getAverageScore() a[position].getAverageScore()) { //比较平均成绩
position = i;
}
}
return position;
}
public void selectSort(Student a[]) { //Student类对象数组的选择排序
for (int n = a.length; n 1; n--) {
int i = max(a, n);
Student temp = a[i];
a[i] = a[n - 1];
a[n - 1] = temp;
}
}
}
java循环录入会员信息，要求用数组。求大神帮忙解答！
import java.util.Scanner;
public class Test {
public static void main(String[] args) {
String[] sno = new String[5]; // 会员号
String[] sdate = new String[5]; // 生日
int[] sscore = new int[5]; // 积分
Scanner sc = new Scanner(System.in);
for(int i = 0; i 5; i++){
System.out.print("输入第[" + (i + 1) + "]位会员号:");
sno[i] = sc.nextLine();
System.out.print("输入第[" + (i + 1) + "]位生日:");
sdate[i] = sc.nextLine();
System.out.print("输入第[" + (i + 1) + "]位积分:");
sscore[i] = sc.nextInt();
}
for(int i = 0; i 5; i++){
System.out.println("第[" + (i + 1) + "]位会员信息:");
System.out.println("会员号: " + sno[i] + ". 生日: " + sdate[i] + ". 积分: " + sscore[i]);
}
}
}
Java实现简单个人信息录入
数据库就要你自己建了.
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
import java.sql.*;
public class PersonInfoRecorder extends JFrame implements ActionListener{
private JLabel nameLabel,sexLabel,ageLabel,tipLabel;//用来显示姓名、性别、年龄和提示栏
private JTextField nameTextField,ageTextField;//用来输入姓名和年龄
private JComboBox sex;//用来选择性别
private JTextArea info;//用来显示输入的个人信息
private JButton ok;//确定按钮
private JPanel northPanel,centerPanel,bigPanel;
public PersonInfoRecorder(){
super("个人信息录入器");
nameLabel = new JLabel("姓名");
sexLabel = new JLabel("性别");
ageLabel = new JLabel("年龄");
nameTextField = new JTextField(6);
ageTextField = new JTextField(6);
String sexs[] = {"男","女" };
sex = new JComboBox(sexs);
/*sex.addItemListener(
new ItemListener(){
public void itemStateChanged(ItemEvent event){
if(event.getStateChange() == ItemEvent.SELECTED){
String fsex = (String)sex.getSelectedItem();
info.setText(fsex);
}
}
});*/
ok = new JButton("确定");
ok.addActionListener(this);
northPanel = new JPanel();
northPanel.add(nameLabel);
northPanel.add(nameTextField);
northPanel.add(sexLabel);
northPanel.add(sex);
northPanel.add(ageLabel);
northPanel.add(ageTextField);
northPanel.add(ok);
info = new JTextArea("输入个人简要信息",5,30);
info.setLineWrap(true);
centerPanel = new JPanel();
JScrollPane scroll = new JScrollPane(info);
scroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
scroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
centerPanel.add(scroll);
bigPanel = new JPanel();
bigPanel.add(northPanel);
bigPanel.add(centerPanel);
getContentPane().add(bigPanel);
setSize(400,200);
setVisible(true);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public void actionPerformed(ActionEvent e){
if(nameTextField.getText().equals("")){
JOptionPane.showMessageDialog(null, "姓名不能为空!请输入姓名.");
}else{
String inform = info.getText();
if(inform.equals("输入个人简要信息")){
inform = "";
}
info.setText("姓名:" + nameTextField.getText()
+ "\n性别:" + (String)sex.getSelectedItem()
+ "\n年龄:" +
"\n简介:\n" + inform);
try{ //这里的异常处理语句是必需的.否则不能通过编译!
String sqlStr = "insert into Person values(nameTextField.getText(),"+
"(String)sex.getSelectedItem(),ageTextField.getText(),inform)";
Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
String url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=Person";
//Person为数据库
String user="sa";
String password="";
Connection con = DriverManager.getConnection(url,user,password);
Statement st = con.createStatement();
st.executeUpdate( sqlStr );
st.close();
con.close();
} catch(ClassNotFoundException exception) {
exception.printStackTrace(System.out);
}
catch(Exception err) {
err.printStackTrace(System.out);
}
}
}
public static void main(String[] args) {
PersonInfoRecorder application = new PersonInfoRecorder();
}
}
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发布于：2022-12-01，除非注明，否则均为原创文章，转载请注明出处。