求一段简单的JAVA代码 要求员工工资管理系统的一个增删改查代码，谢谢了

对数据库进行增删改查？

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以下是 sql server 2013+java.实现的是对MSC对象的增删改查.

需要下载连接驱动程序：com.microsoft.sqlserver.jdbc.SQLServerDriver

网上搜一下就行

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.sql.Statement;

class MSC

{

public String MscID;

public String MscName;

public String MscCompany;

public float MscLongitude;

public float MscLatitude;

public float MscAltitude;

public MSC(String MscID, String MscName, String MscCompany,

float MscLongitude, float MscLatitude,float MscAltitude){

this.MscID = MscID;

this.MscName = MscName;

this.MscCompany = MscCompany;

this.MscLongitude =MscLongitude;

this.MscLatitude = MscLatitude;

this.MscAltitude = MscAltitude;

}

}

public class sqlserverjdbc {

public Connection getConnection(){

String driverName = "com.microsoft.sqlserver.jdbc.SQLServerDriver"; //加载JDBC驱动

String dbURL = "jdbc:sqlserver://localhost:1433; DatabaseName=gsm"; //连接服务器和数据库sample

String userName = "sa"; //默认用户名

String userPwd = "123"; //密码

Connection dbConn = null;

try {

Class.forName(driverName);

dbConn =DriverManager.getConnection(dbURL, userName, userPwd);

} catch (Exception e) {

e.printStackTrace();

}

return dbConn;

}

public void printUserInfo(){

Connection con = getConnection();

Statement sta = null;

ResultSet rs = null;

System.out.println("打印表格MSC信息");

try {

sta = con.createStatement();

rs = sta.executeQuery("select * from MSC信息");

System.out.println("MscID\tMscName\tMscCompany\tMscLongitude\tMscLatitude\tMscAltitude");

while(rs.next()){

System.out.println(rs.getString("MscID")+"\t"+

rs.getString("MscName")+"\t"+

rs.getString("MscCompany")+"\t"+

rs.getFloat("MscLongitude")+"\t"+

rs.getFloat("MscLatitude")+"\t"+

rs.getFloat("MscAltitude"));

}

con.close();

sta.close();

rs.close();

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

System.out.println("打印完成\n");

}

public void delete(String MscID){

Connection con = getConnection();

String sql = "delete from MSC信息 where MscID = " + MscID;

PreparedStatement pst;

System.out.println("删除表格MSC信息中 ID = "+MscID+"的记录");

try {

pst = con.prepareStatement(sql);

pst.execute();

pst.close();

con.close();

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

System.out.println("记录删除失败！！！");

}

System.out.println("记录删除成功！！！\n");

}

public void insert(MSC msc){

Connection con = getConnection();

String sql = "insert into MSC信息 values(?,?,?,?,?,?)";

PreparedStatement pst;

System.out.println("插入一条记录");

try {

pst = con.prepareStatement(sql);

pst.setString(1, msc.MscID);

pst.setString(2, msc.MscName);

pst.setString(3, msc.MscCompany);

pst.setFloat(4, msc.MscLongitude);

pst.setFloat(5, msc.MscLatitude);

pst.setFloat(6, msc.MscAltitude);

pst.execute();

pst.close();

con.close();

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

System.out.println("插入失败！！！");

}

System.out.println("插入成功！！！\n");

}

//更新MscID的MscName

public void updateMscName(String MscID, String MscName){

Connection con = getConnection();

String sql = "update MSC信息 set MscName = ? where MscID = ?";

PreparedStatement pst;

System.out.println("修改一条记录");

try {

pst = con.prepareStatement(sql);

pst.setString(1, MscName);

pst.setString(2, MscID);

pst.execute();

pst.close();

con.close();

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

System.out.println("修改失败！！！");

}

System.out.println("修改成功！！！\n");

}

public static void main(String args[]){

sqlserverjdbc sql = new sqlserverjdbc();

sql.printUserInfo();

sql.delete("1111");

sql.printUserInfo();

sql.updateMscName("5215", "联想");

sql.printUserInfo();

sql.insert(new MSC("1111", "中兴" ," 中兴", (float)12.2, (float)3.4,(float)45.5));

sql.printUserInfo();

}

}

java 编程 计算工人工资，

JAVA计算工人工资，参考例子如下：

import java.util.Scanner;

public class Demo00 {

//定义一个三维数组，用于记录每个部门、分支、绩效工资

private static final float[][][] SALARY_OF_PER_HOUR = {

{{10.75f,12.50f,14.50f},{11.75f,14.50f,17.50f}},

{{13.00f,16.00f,18.50f},{15.00f,18.50f,22.00f}},

{{16.75f,18.50f,20.50f},{19.25f,25.00f,30.00f}}

};

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

//输入姓名

System.out.println("请输入姓名：");

String name = sc.nextLine();

//输入部门并验证

System.out.println("请输入部门: A,B,C");

char dept = sc.nextLine().charAt(0);

if(dept'A'||dept'C')

{

System.out.println("输入有误，系统将退出");

System.exit(0);

}

//输入分支机构并验证

System.out.println("请输入分支机构: 1,2");

char div = sc.nextLine().charAt(0);

if(div'1'||div'2')

{

System.out.println("输入有误，系统将退出");

System.exit(0);

}

//输入薪绩表并验证

System.out.println("请输入薪绩表: a,b,c");

char sal = sc.nextLine().charAt(0);

if(sal'a'||sal'c')

{

System.out.println("输入有误，系统将退出");

System.exit(0);

}

//输入小时数

System.out.println("请输入本周工作时间（整小时数）：");

int hours = sc.nextInt();

float salary = 0;

//每个小时的薪水

float salaryPerHour = SALARY_OF_PER_HOUR[dept-'A'][div-'1'][sal-'a'];

//分别计算40小时内和超过40小时的薪水

if(hours=40)

{

salary += salaryPerHour*hours;

}

else

{

salary += salaryPerHour*hours+(hours-40)*1.5*salaryPerHour;

}

//输出结果

System.out.println("姓名:\t"+name+"\n部门:\t"+dept+"\n分支机构:\t"+div

+"\n薪绩表:\t"+sal+"\n工作时间:\t"+hours+"\n薪水:\t"+salary);

}

}

//Best wishes!

JAVA编程,计算公司不同员工工资。

JAVA计算工人工资，参考例子如下：

import java.util.Scanner;

public class Demo00 {

//定义一个三维数组，用于记录每个部门、分支、绩效工资

private static final float[][][] SALARY_OF_PER_HOUR = {

{{10.75f,12.50f,14.50f},{11.75f,14.50f,17.50f}},

{{13.00f,16.00f,18.50f},{15.00f,18.50f,22.00f}},

{{16.75f,18.50f,20.50f},{19.25f,25.00f,30.00f}}

};

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

//输入姓名

System.out.println("请输入姓名：");

String name = sc.nextLine();

//输入部门并验证

System.out.println("请输入部门: A,B,C");

char dept = sc.nextLine().charAt(0);

if(dept'A'||dept'C')

{

System.out.println("输入有误，系统将退出");

System.exit(0);

}

//输入分支机构并验证

System.out.println("请输入分支机构: 1,2");

char div = sc.nextLine().charAt(0);

if(div'1'||div'2')

{

System.out.println("输入有误，系统将退出");

System.exit(0);

}

//输入薪绩表并验证

System.out.println("请输入薪绩表: a,b,c");

char sal = sc.nextLine().charAt(0);

if(sal'a'||sal'c')

{

System.out.println("输入有误，系统将退出");

System.exit(0);

}

//输入小时数

System.out.println("请输入本周工作时间（整小时数）：");

int hours = sc.nextInt();

float salary = 0;

//每个小时的薪水

float salaryPerHour = SALARY_OF_PER_HOUR[dept-'A'][div-'1'][sal-'a'];

//分别计算40小时内和超过40小时的薪水

if(hours=40)

{

salary += salaryPerHour*hours;

}

else

{

salary += salaryPerHour*hours+(hours-40)*1.5*salaryPerHour;

}

//输出结果

System.out.println("姓名:\t"+name+"\n部门:\t"+dept+"\n分支机构:\t"+div

+"\n薪绩表:\t"+sal+"\n工作时间:\t"+hours+"\n薪水:\t"+salary);

}

}

//Best wishes!

求java大神编写下这个,急

按照题目要求编写的计算员工税后工资的Java程序如下

import java.util.Scanner;

public class Tax{

public static double calculateSalary(double s){

double sat=0;

if(s=5000){

sat=s;

}else if(5000s s=6500){

sat=s-(s-5000)*0.03;

}else if(6500s s=9500){

sat=s-(s-5000)*0.1;

}else if(9500s s=14000){

sat=s-(s-5000)*0.2;

}else if(14000s s=40000){

sat=s-(s-5000)*0.25;

}else if(40000s s=60000){

sat=s-(s-5000)*0.3;

}else if(60000s s=85000){

sat=s-(s-5000)*0.35;

}

return sat;

}

public static void main(String[] args){

Scanner sc=new Scanner(System.in);

int n=0;

double s,sat;

double[] salary=new double[10];

double[] salaryAfterTax=new double[10];

System.out.print("是否添加新员工薪水 y/n?");

String add=sc.next();

while(add.equals("y")){

s=sc.nextDouble();

salary[n]=s;

sat=calculateSalary(s);

salaryAfterTax[n]=sat;

n++;

System.out.print("是否添加新员工薪水 y/n?");

add=sc.next();

}

for(int i=0;in-1;i++){

for(int j=0;jn-1-i;j++){

if(salaryAfterTax[j]salaryAfterTax[j+1]){

double temp=salaryAfterTax[j];

salaryAfterTax[j]=salaryAfterTax[j+1];

salaryAfterTax[j+1]=temp;

}

}

}

System.out.printf("税后工资高的前三名是:%.2f,%.2f,%.2f",salaryAfterTax[0],salaryAfterTax[1],salaryAfterTax[2]);

}

}

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