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1.public class TestString{
public static void link(String a){
a +="World";
}
public static void main(String[] args){
String a = "Hello";
link(a);
System.out.println(a);
}
}
2.System.out.println("ja"+"va"=="java");
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1.What is your strongest traits ?
2.How would your friends or colleagues describe you ?
3.What is most important in you life ?
4.Do you work well under stress or pressure?
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×ÊÁÏÒýÓÃ:http://www.knowsky.com/539131.html
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//LogProxy.java
package com.gc.action;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
public class LogProxy implements InvocationHandler{
private ......
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package JFFileEncrypt;
import java.security.Key;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import javax.crypto.KeyGenerator;
import javax.crypto.spec.SecretKeySpec;
/**
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