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Set icon for Android application
... such:
<application android:icon="@drawable/icon_name" android:label="@string/app_name" >
....
</application>
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MySQL stored procedure vs function, which would I use when?
...ons and triggers cannot use Dynamic SQL (where you construct statements as strings and then execute them). (Dynamic SQL in MySQL stored routines)
Some more interesting differences between FUNCTION and STORED PROCEDURE:
(This point is copied from a blogpost.)
Stored procedure is precompiled execu...
Unsigned keyword in C++
...ng -> signed long
signed long
unsigned long
Be careful of char:
char (is signed or unsigned depending on the implmentation)
signed char
unsigned char
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How do I use Java to read from a file that is actively being written to?
...ed in the console.
public class FileReader {
public static void main(String args[]) throws Exception {
if(args.length>0){
File file = new File(args[0]);
System.out.println(file.getAbsolutePath());
if(file.exists() && file.canRead()){
...
ZeroMQ实例-使用ZMQ(ZeroMQ)进行局域网内网络通信 - C/C++ - 清泛网 - 专注C/C++及内核技术
...q的头文件
#include <zmq.h>
#include "stdio.h"
int main(int argc, char * argv[])
{
void * pCtx = NULL;
void * pSock = NULL;
const char * pAddr = "tcp://*:7766";
//创建context，zmq的socket 需要在context上进行创建
if((pCtx = zmq_ctx_new()) == NULL)
...
Efficient way to return a std::vector in c++
...
vector<string> getseq(char * db_file)
And if you want to print it on main() you should do it in a loop.
int main() {
vector<string> str_vec = getseq(argv[1]);
for(vector<string>::iterator it = str_vec.beg...
String vs. StringBuilder
I understand the difference between String and StringBuilder ( StringBuilder being mutable) but is there a large performance difference between the two?
...
Open another application from your own (intent)
...ndle extras = getIntent().getExtras() => if(extras != null) { extras.getString("blah") } etc
– Gaurav Vaish
Nov 19 '13 at 1:24
2
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android pick images from gallery
...& null != data) {
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int colu...
Should I inherit from std::exception?
...s no way to pass a message to std::exception. std::runtime_error accepts a string and is derived from std::exception.
– Martin York
Nov 3 '09 at 19:59
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