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員工信息代碼java語言 對(duì)員工信息表的員工代碼進(jìn)行升級(jí)

用Java編寫一個(gè)員工類程序:1.屬性:員工編號(hào),員工姓名,基本工資,獎(jiǎng)金,2.構(gòu)造方法:至少兩個(gè)

用Java編寫一個(gè)員工類程序:1.屬性:員工編號(hào),員工姓名,基本工資,獎(jiǎng)金,2.構(gòu)造方法:至少兩個(gè)。如下:

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package?com.test;

public?class?Employee?{

/**

*?員工編號(hào)

*/

private?String?number;

/**

*?員工姓名

*/

private?String?name;

/**

*?員工薪水

*/

private?double?salary;

/**

*?無參數(shù)構(gòu)造函數(shù)

*/

public?Employee()?{

}

/**

*?給屬性賦值構(gòu)造函數(shù)

*?@param?number

*?@param?name

*?@param?salary

*/

public?Employee(String?number,?String?name,?double?salary)?{

super();

this.number?=?number;

this.name?=?name;

this.salary?=?salary;

}

public?static?void?main(String[]?args)?{

//員工一,并且構(gòu)造函數(shù)里設(shè)置值

Employee?e1?=?new?Employee("e0001",?"xiaoming",?5000.0);

System.out.println("員工一:"?+?e1);

//員工二,用set設(shè)置值,get的話可以獲取到員工某個(gè)屬性

Employee?e2?=?new?Employee();

e2.setName("小二");

e2.setNumber("e0002");

e2.setSalary(5500.1);

System.out.println("員工二:"?+?e2);

}

public?String?getNumber()?{

return?number;

}

public?void?setNumber(String?number)?{

this.number?=?number;

}

public?String?getName()?{

return?name;

}

public?void?setName(String?name)?{

this.name?=?name;

}

public?double?getSalary()?{

return?salary;

}

public?void?setSalary(double?salary)?{

this.salary?=?salary;

}

@Override

public?String?toString()?{

return?"Employee?[number="?+?number?+?",?name="?+?name?+?",?salary="?+

salary?+?"]";

}

}

運(yùn)行結(jié)果:

員工一:Employee?[number=e0001,?name=xiaoming,?salary=5000.0]

員工二:Employee?[number=e0002,?name=小二,?salary=5500.1]

利用java代碼,編寫JDBC連接數(shù)據(jù)庫新增員工信息的步驟. 員工信息表:t_emp(id int?

第一步:新建數(shù)據(jù)庫

連接的是本地localhost,新建一個(gè)新的數(shù)據(jù)庫名是jdbctest

然后建表t_emp

不會(huì)的話可通過執(zhí)行下方的sql語句建表

CREATE TABLE `t_emp` (

`id` int(11) NOT NULL AUTO_INCREMENT,

`name` varchar(255) DEFAULT NULL,

`salary` double DEFAULT NULL,

PRIMARY KEY (`id`)

) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;

第二步:新建java項(xiàng)目

新建完以后添加mysql驅(qū)動(dòng)的jar包,jar包自己下載

在項(xiàng)目上右鍵鼠標(biāo)屬性,然后

添加jar包,我這里已經(jīng)加載過了

第三步:編寫代碼

package com.gf;

import java.sql.DriverManager;

import java.sql.SQLException;

import com.mysql.jdbc.Connection;

import com.mysql.jdbc.Statement;

public class Test {

public static void main(String[] args) throws Exception {

int flag=0;

//1.加載驅(qū)動(dòng)

Class.forName("com.mysql.jdbc.Driver");

//2.獲取連接

Connection conn=(Connection) DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/jdbctest?user=rootpassword=123456useUnicode=truecharacterEncoding=UTF-8");

//3.創(chuàng)建statement

Statement sm=(Statement) conn.createStatement();

//4.執(zhí)行sql語句

flag=sm.executeUpdate("insert into t_emp(name,salary) values('菲菲',34.9)");

if(flag!=0) {

System.out.println("員工信息增加成功");

}else {

System.out.println("添加失敗");

}

}

}

注意點(diǎn):

---------------------------------------------------------------------------------

DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/jdbctest?user=rootpassword=123456useUnicode=truecharacterEncoding=UTF-8");

這里需要修改自己本機(jī)的連接信息,不然會(huì)出現(xiàn)連接失敗

最后的執(zhí)行結(jié)果

使用Java語言編寫程序,輸出某公司員工的基本信息

public class Test0 {

public static void main(String[] args) {

Employee ZhangSan = new Employee("001", "張三", '男', "銷售部", 6000, 1000, "普通員工");

Employee LiSi = new Employee("002", "李四", '女', "人事部", 7000, 2000, "超級(jí)員工");

System.out.println(ZhangSan.toString()); //打印張三信息

System.out.println(LiSi.toString()); //打印李四信息

}

}

class Employee{

private String id; //員工ID

private String name; //姓名

private char sex; //性別

private String department; //部門

private int basic_salary; //基本工資

private int extra_salary; //薪金

private String classify; //類別

/**

* 構(gòu)造方法

*/

public Employee(String id, String name, char sex, String department,

int basic_salary, int extra_salary, String classify) {

this.id = id;

this.name = name;

this.sex = sex;

this.department = department;

this.basic_salary = basic_salary;

this.extra_salary = extra_salary;

this.classify = classify;

}

public Employee(){

}

public String getId() {

return id;

}

public void setId(String id) {

this.id = id;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public char getSex() {

return sex;

}

public void setSex(char sex) {

this.sex = sex;

}

public String getDepartment() {

return department;

}

public void setDepartment(String department) {

this.department = department;

}

public int getBasic_salary() {

return basic_salary;

}

public void setBasic_salary(int basic_salary) {

this.basic_salary = basic_salary;

}

public int getExtra_salary() {

return extra_salary;

}

public void setExtra_salary(int extra_salary) {

this.extra_salary = extra_salary;

}

public String getClassify() {

return classify;

}

public void setClassify(String classify) {

this.classify = classify;

}

public String toString(){

String str ="[員工ID:"+id+"|姓名:"+name+"|性別:"+sex+

"|部門:"+department+"|基本工資:+"+basic_salary+

"|薪金:"+extra_salary+"|類別:"+classify+"]";

return str;

}

}

文章題目:員工信息代碼java語言 對(duì)員工信息表的員工代碼進(jìn)行升級(jí)
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