金属力学性能参数哪里可以查到

import javaawtBorderLayout;

import javaawtCardLayout;

import javaawtContainer;

import javaawtFont;

import javaawteventActionEvent;

import javaawteventActionListener;

import javaxswingIcon;

import javaxswingImageIcon;

import javaxswingJButton;

import javaxswingJFrame;

import javaxswingJLabel;

import javaxswingJMenu;

import javaxswingJMenuBar;

import javaxswingJMenuItem;

import javaxswingJPanel;

import javaxswingJToolBar;

import javaxswingSwingConstants;

public class MainFrame extends JFrame implements ActionListener{

InsertPanel ip = null;

SelectPanel sp = null;

JPanel pframe;

JButton jb1,jb2,jb3;

JMenuItem jm11,jm21,jm22,jm23,jm31,jm32,jm41,jm42;

CardLayout clayout;

public MainFrame(String s){

super(s);

JMenuBar mb = new JMenuBar();

thissetJMenuBar(mb);

JMenu m1 = new JMenu("系统");

JMenu m2 = new JMenu("基本信息");

JMenu m3 = new JMenu("成绩");

JMenu m4 = new JMenu("奖惩");

mbadd(m1);

mbadd(m2);

mbadd(m3);

mbadd(m4);

jm11 = new JMenuItem("退出系统");

jm21 = new JMenuItem("输入");

jm22 = new JMenuItem("查询");

jm23 = new JMenuItem("更改");

jm31 = new JMenuItem("输入成绩");

jm32 = new JMenuItem("查询成绩");

jm41 = new JMenuItem("奖励");

jm42 = new JMenuItem("处分");

m1add(jm11);

m2add(jm21);

m2add(jm22);

m2add(jm23);

m3add(jm31);

m3add(jm32);

m4add(jm41);

m4add(jm42);

Icon i1 = new ImageIcon();

Icon i2 = new ImageIcon();

Icon i3 = new ImageIcon();

jb1 = new JButton(i1);

jb1setToolTipText("输入");

jb2 = new JButton(i2);

jb2setToolTipText("查询");

jb3 = new JButton(i3);

jb3setToolTipText("退出");

JToolBar tb = new JToolBar("系统工具");

tbadd(jb1);

tbadd(jb2);

tbadd(jb3);

add(tb,BorderLayoutNORTH);

jm11addActionListener(this);

jm21addActionListener(this);

jm22addActionListener(this);

jb1addActionListener(this);

jb2addActionListener(this);

jb3addActionListener(this);

clayout = new CardLayout();

pframe = new JPanel(clayout);

add(pframe);

JPanel mainp = new JPanel(new BorderLayout());

JLabel mainl = new JLabel("学生信息管理平台",SwingConstantsCENTER);

mainlsetFont(new Font("serif",FontBOLD,30));

mainpadd(mainl);

pframeadd(mainp,"main");

clayoutshow(pframe, "main");

}

public void actionPerformed(ActionEvent e){

if(egetSource() == jm21 || egetSource() == jb1){

if(ip == null){

ip= new InsertPanel();

pframeadd(ip,"insert");

}

clayoutshow(pframe, "insert");

thissetTitle("输入学生信息");

}

else if(egetSource() == jm22 || egetSource() == jb2){

if(sp == null){

sp= new SelectPanel();

pframeadd(sp,"select");

}

clayoutshow(pframe, "select");

thissetTitle("查询学生信息");

}

else if(egetSource() == jm11 || egetSource() == jb3){

Systemexit(0);

}

}

}

第二个：

import javaxswingJFrame;

public class MainTest {

public static void main(String [] args){

MainFrame f = new MainFrame("学生信息管理平台");

fsetSize(400,300);

fsetLocation(350,250);

fsetDefaultCloseOperation(JFrameEXIT_ON_CLOSE);

fsetVisible(true);

}

}

第二个：

import javasqlConnection;

import javasqlDriverManager;

public class MySQLConnection {

static Connection getCon(){

Connection con = null;

try{

ClassforName("commysqljdbcDriver");

con = DriverManagergetConnection("jdbc:mysql://localhost/test","root","123");

}

catch(Exception e){

Systemoutprintln("建立数据库连接遇到异常！");

}

return con;

}

}

第四个：

import javaawtBorderLayout;

import javaawtGridLayout;

import javaawteventActionEvent;

import javaawteventActionListener;

import javaxswingJButton;

import javaxswingJLabel;

import javaxswingJOptionPane;

import javaxswingJPanel;

import javaxswingJTextField;

import javaxswingSwingConstants;

public class SelectPanel extends JPanel implements ActionListener{

JButton jb;

JTextField jt;

JTextField jt1,jt2,jt3,jt4;

public SelectPanel(){

JLabel jl = new JLabel("请输入学号:",SwingConstantsCENTER);

jt = new JTextField();

jb = new JButton("确定");

JPanel jp1 = new JPanel(new GridLayout(1,3));

jp1add(jl);

jp1add(jt);

jp1add(jb);

JLabel j1,j2,j3,j4;

j1 = new JLabel("学号:",SwingConstantsCENTER);

j2 = new JLabel("姓名:",SwingConstantsCENTER);

j3 = new JLabel("性别:",SwingConstantsCENTER);

j4 = new JLabel("年龄:",SwingConstantsCENTER);

jt1 = new JTextField(6);

jt1setEditable(false);

jt2 = new JTextField(6);

jt2setEditable(false);

jt3 = new JTextField(6);

jt3setEditable(false);

jt4 = new JTextField(6);

jt4setEditable(false);

JPanel jp2 = new JPanel(new BorderLayout());

JPanel jp3 = new JPanel(new GridLayout(4,2));

jp2add(new JLabel(""),BorderLayoutNORTH);

jp3add(j1);

jp3add(jt1);

jp3add(j2);

jp3add(jt2);

jp3add(j3);

jp3add(jt3);

jp3add(j4);

jp3add(jt4);

jp2add(jp3);

thissetLayout(new BorderLayout());

add(jp1,BorderLayoutNORTH);

add(jp2);

jbaddActionListener(this);

}

public void actionPerformed(ActionEvent e){

if(egetSource() == jb){

String stuNo = jtgetText()trim();

Student s = new Student();

boolean b = true;

try{

b = sselectByStuNo(stuNo);

}

catch(Exception ex){

Systemoutprintln("查询学生信息遇到异常!");

}

if(b){

jt1setText(sgetStuNo());

jt2setText(sgetName());

jt3setText(sgetGender());

int a = sgetAge();

Integer i = new Integer(a);

jt4setText(itoString());

}

else{

JOptionPaneshowMessageDialog(null, "无此学生!");

}

}

}

}

第五个：

import javaxswingJFrame;

public class SelectTest {

public static void main(String [] args){

JFrame f = new JFrame("查询学生信息");

SelectPanel p = new SelectPanel();

fadd(p);

fsetSize(400,300);

fsetLocation(300,250);

fsetDefaultCloseOperation(JFrameEXIT_ON_CLOSE);

fsetVisible(true);

}

}

第六个：

import javasqlConnection;

import javasqlResultSet;

import javasqlStatement;

public class Student {

String stuNo;

String name;

String gender;

int age;

public Student(){}

public Student(String stuNo,String name,String gender, int age){

thisstuNo = stuNo;

thisname = name;

thisgender = gender;

thisage = age;

}

public String getStuNo(){

return stuNo;

}

public void setStuNo(String stuNo){

thisstuNo = stuNo;

}

public String getName(){

return name;

}

public void setName(String name){

thisname = name;

}

public String getGender(){

return gender;

}

public void setGender(String gender){

thisgender = gender;

}

public int getAge(){

return age;

}

public void setAge(int age){

thisage = age;

}

public boolean insertStudent(){

boolean b = true;

try{

Connection con = MySQLConnectiongetCon();

Statement statement = concreateStatement();

String sql = "insert into student values('" + stuNo + "','" + name +"','" + gender + "'," + age + ")";

sql = new String(sqlgetBytes("gb2312"),"ISO8859_1");

statementexecuteUpdate(sql);

conclose();

}

catch(Exception e){

b = false;

Systemoutprintln("插入数据库遇到异常！");

}

return b;

}

public boolean selectByStuNo(String stuNo)throws Exception{

boolean b = true;

Connection con = MySQLConnectiongetCon();

Statement statement = concreateStatement();

String sql = "select from student where stuNo =" + stuNo;

ResultSet rs = statementexecuteQuery(sql);

if(rs != null && rsnext()){

String no = rsgetString(1);

thissetStuNo(no);

String n = rsgetString(2);

n = new String(ngetBytes("ISO8859_1"),"gb2312");

thissetName(n);

String g = rsgetString(3);

g = new String (ggetBytes("ISO8859_1"),"gb2312");

thissetGender(g);

thissetAge(rsgetInt(4));

b = true;

}

rsclose();

statementclose();

conclose();

return b;

}

}

数据库你自己弄吧，我没时间弄了！初学得多动手哦

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