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public static void getConnAndTableStruct() {
Connection connection = null;
PreparedStatement pstmt = null;
ResultSetMetaData rsmd = null;
try {
// mysqlÁ¬½Ó
//Class.forName("org.gjt.mm.mysql.Driver");
//connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "root");
// oracleÁ¬½Ó
Class.forName("oracle.jdbc.driver.OracleDriver");
String url="jdbc:oracle:thin:@192.168.12.12:1521:db";
connection=DriverManager.getConnection(url,"manager","manager");
pstmt = (PreparedStatement) connection.prepareStatement("select * from A_STAT");
pstmt.execute(); // ÕâµãÌØ±ðҪעÒâ:Èç¹ûÊÇOracle¶ø¶ÔÓÚmysql¿ÉÒÔ²»ÓüÓ.
rsmd = (ResultSetMetaData) pstmt.getMetaData();
//className = "User";
//tableName = "user";
for (int i = 1; i < rsmd.getColumnCount() + 1; i++) {
//rsmd.getColumnName(i);
//rsmd.getColumnClassName(i).substring(rsmd.getColumnClassName(i).lastIndexOf(".") + 1);
System.out.println(rsmd.getColumnClassName(i));
System.out.println(rsmd.getColumnName(i));
System.out.println(rsmd.getColumnTypeName(i));
System.out.println(rsmd.getPrecision(i));
System.out.println(rsmd.getScale(i));
System.out.println(rsmd.isNullable(i));//0 ²»ÄÜΪ¿Õ 1¿ÉÒÔΪ¿Õ
System.out.println("=============================");
System.out.println("=============================");
System.out.println("=============================");
System.out.println("
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class Tank{
int level;
}
public class Assignment {
public static void main(String[] args) {
Tank t1 = new Tank();
Tank t2 = new Tank();
t1.level= 9;
t2.level= 47;
System.out.println("1:t1.l ......
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public class frameTest(){
public static void Main(String args[]){
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