http://blog.csdn.net/itmyhome1990/article/details/9132929…

package com.test1; import java.io.PrintWriter; import java.io.StringWriter; public class T010 { /** * @param args */ public static void main(String[] args) { try { String[] arr = {"111", "222"}; arr[2] = "fff"; } catch (Excep…

<?xml version="1.0" encoding="utf-8"?><Root> <Header> <MessageReferenceNumber>I9DeoogUJg8ZBfA</MessageReferenceNumber> <DocumentName>无车承运人电子路单</DocumentName> <DocumentVersionNumber>2015WC…

需要导入的jar包 具体实现 public class ColumnToString { public static void main(String[] args) { new ColumnToString().read(); } public void read() { File file = new File("Excel 文件位置(C:\\myExcel.xlsx)"); InputStream inputStream = null; Workbook workbook = n…

1. 背景自己在测试HashSet时,发现其输出Integer是有序的.2. 测试public static void hashSetObjectTest(){ Set<Integer> set = new HashSet<Integer>(); set.add(6); set.add(3); set.add(2); set.add(1); set.add(4); set.add(5); //set.add(100); //set.add(130); //set.add(22);…

IID tmp = __uuidof(ClassLibrary1::Class1); OLECHAR * buf; StringFromIID(tmp, &buf); 好像要#include <Windows.h>…

string比较连接 >>> s1="python string" >>> len(s) 13 >>> s2=" python string2 " >>> s=s1+s2 >>> s 'python string python string2 ' >>> >>> cmp(s1,s2) 1 string 截取 >>> s1[0…

strcmp 字符串比较函数 原型: int strcmp(char *str1, char *str2); 例子: ) printf("buffer 1 is greater than buffer 2.\n"); str1>str2,返回值 > 0(一般返回1),两串相等,返回0   strlen 字符串长度函数 原型: int strlen(const char *s); 例子: char *buf1="haha"; len=strlen(buf1…

1,String 数组转成 list<String> String[] s={"1","2","3","5","6"}; List<String> listA = Arrays.asList(s); String 数组在转成 list<String>后, 直接对该list进行操作, 会出异常,例如: public static void main(String[] arg…

先给出通过字符型指针输出字符串的示例代码,如下: #include <iostream>using std::cout;using std::endl; int main(){ const char *pszStr = "this is a string"; // 输出字符串 cout << "字符串:" << pszStr << endl; // 显然不会输出地址值 cout << "字符串起始…