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Java Type VS Hibernate Type

Java Class Attribute Type         Hibernate Type               Possible SQL Type-Vendor Specific
Integer, int, long short          integer, long, short         Appropriate SQL type
char                              character                    char
java.math.BigDecimal              big_decimal                  NUMERIC, NUMBER
float, double                     float, double                float, double
java.lang.Boolean, boolean        boolean, yes_no,             boolean, int
                                  true_false
  
java.lang.string                  string                      &


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JavaʵÏÖXMPP·¢ËͽÓÊÕÏûÏ¢ºÍÎļþ¹¦ÄÜ

package test;
import java.io.File;
import org.jivesoftware.smack.Chat;
import org.jivesoftware.smack.ConnectionConfiguration;
import org.jivesoftware.smack.MessageListener;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack ......

ΪʲôJAVAҪʹÓõ¥¼Ì³ÐÌåϵ

´ó¼Ò¶¼ÖªµÀJAVAÖÐʹÓÃOBJECT×÷ΪΨһµÄ»ùÀà¡£µ«ÊÇJAVAµÄÉè¼ÆÕßΪʲôҪÕâÑù×öÄØ£¿ÖضÁ¡¶TTHINKING IN JAVA¡·£¬µÃ³öÒÔÏÂÔ­Òò£º
1£¬JAVAÊÇ´¿ÃæÏò¶ÔÏóµÄÓïÑÔ¡£µ¥¼Ì³ÐÌåϵ±£Ö¤ÁËËùÓÐн¨µÄ»òJDKÖÐÒÑÓеÄÀà¶¼±ØÐë¼Ì³Ð×ÔOBJECT¡£ÕâÑù£¬±£Ö¤ÁËËùÓеÄÀà¶¼¾ßÓÐһЩ»ù±¾µÄ·½·¨¡£ÀýÈçÒ»¸öString¶ÔÏóÓÐtoString()·½·¨£¬ÁíÍâÒ»¸öMath¶ÔÏ ......

ÓÃJava³ÌÐòʵÏÖ½âѹËõÎļþ

package com.huawei.globe;
import java.util.zip.*;
import java.io.*;
public class Compress {
 public Compress() {
 }
 // ѹËõĿ¼ÏµÄÎļþ
 public void compress(String zipFileName, String inputFile) throws Exception {
  compress(zipFileName, new File(inputFile)); ......

¼ò µ¥ µÄ Java³Ì Ðò

http://www.sdau.edu.cn/support/html/java03.htm 
1.3 ¼ò µ¥ µÄ Java³Ì Ðò
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public class HelloWorldApp { //an application
public static void main (String args[ ]){
System.out.println("Hello World!");
}
}
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Flex Compile Error: Error: Java heap space

ÓÉÓÚFlex Builder compiler shellÓÐmemory leakµÄÎÊÌ⣬ ¶øSDKĬÈÏµÄµÄ JVM heap size Ö»ÓÐ312M£¬µ±compile±È½Ï´óµÄprojectÈÝÒײ»¹»£¬ËùÒÔÖ»ÒªÐÞ¸ÄSDKµÄJVM²ÎÊý¾Í¿ÉÒÔ¡£
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java.args=-Xmx512m ...
Èç¹û»¹ÊÇÓÐError£¬¿ÉÒÔÔö¼Óµ½1024»òÕ߸ü¶à¡£ ......
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