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How do I serialize an object and save it to a file in Android?
...
Saving (w/o exception handling code):
FileOutputStream fos = context.openFileOutput(fileName, Context.MODE_PRIVATE);
ObjectOutputStream os = new ObjectOutputStream(fos);
os.writeObject(this);
os.close();
fos.close();
Loading (w/o exception handling code):
FileInputStream fis =...
Check if string ends with one of the strings from a list
...m the file and see if it is in the set of extensions:
>>> import os
>>> extensions = set(['.mp3','.avi'])
>>> file_name = 'test.mp3'
>>> extension = os.path.splitext(file_name)[1]
>>> extension in extensions
True
Using a set because time complexity for...
How do I view the type of a scala expression in IntelliJ
...2 '11 at 10:26
Sergey PassichenkoSergey Passichenko
6,65211 gold badge2525 silver badges2929 bronze badges
...
When you exit a C application, is the malloc-ed memory automatically freed?
...of that experience, I can say that it does NOT free memory when programs close.
– San Jacinto
Feb 6 '10 at 15:44
8
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Set up adb on Mac OS X
...
Note: this was originally written on Installing ADB on macOS but that question was closed as a duplicate of this one.
Option 1 - Using Homebrew
This is the easiest way and will provide automatic updates.
Install homebrew
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com...
SQL Server: Filter output of sp_who2
...PID INT,
Status VARCHAR(MAX),
LOGIN VARCHAR(MAX),
HostName VARCHAR(MAX),
BlkBy VARCHAR(MAX),
DBName VARCHAR(MAX),
Command VARCHAR(MAX),
CPUTime INT,
DiskIO INT,
LastBatch VARCHAR(MAX),
ProgramName VARCHAR(MAX),
S...
Why I cannot cout a string?
...
You need to include
#include <string>
#include <iostream>
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为维护国家安全 中国限制出口无人机和高性能计算机 - 资讯 - 清泛网 - 专注...
...技术指标】
1.无人驾驶航空飞行器和无人驾驶飞艇
1.1在操作人员自然视距以外，能够可控飞行，并具有下述任一特性的无人驾驶航空飞行器或无人驾驶飞艇（海关商品编号:8802200011、8801009010）：
1.1.1 最大续航时间大于等于30...
How to Copy Text to Clip Board in Android?
...d:
private void setClipboard(Context context, String text) {
if(android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.HONEYCOMB) {
android.text.ClipboardManager clipboard = (android.text.ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE);
clipboard.setTex...
C++ Lock-free Hazard Pointer（冒险指针） - C/C++ - 清泛网 - 专注C/C++及内核技术
...每次读取都需要修改引用计数，高并发场景下这样的原子操作也会成为性能瓶颈，毕竟原子加对应的 CPU 指令 lock add 也可以看成是微型锁。
Linux 内核中提供了 RCU 方法，笔者目前对此还没有太多的了解。本文主要介绍 Hazard Pointe...