Java数据类型
Java变量有两种数据类型,一是Primitive主数据类型,一是引用.
主数据类型包括:
Boolean、char、Byte、short、int、long、float、double
引用为：Dog d = new Dog();
d.bark.
相关文档：
If the requested address is not a valid virtual memory address (it doesn't belong to any of
the memory segments of the executing process), the page cannot be validated, and
a segmentation fault is generated. This vectors control to another part of the kernel and
usually results in the pro ......
数据类型：
(4类8种)
逻辑型－boolean
字符型－ char
数值型：
整数型－ byte, short, int, long
浮点数型－ float, double
·Java 语言中还允许使用转义字符 ‘\’ 来将其后的字符转变为其它的含义.‘\n’代表换行符
·Java整型常量默认为int型，声明lon ......
import java.lang.reflect.*;
public class A extends Thread {
public static void main(String[] args) throws Exception{
CC cc = new CC();
HH hh = new HH(cc);
II ii = (II) Proxy.newProxyInstance(H ......
package com.yc.eap.util;
import java.io.File;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import org.apache.common ......
