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java 多线程再探
我们知道线程能通过继承Thread和实现Runnable接口来实现,但是,他们都有一个弊端,就是run之后不能有返回值,当然我们可以通过向线程中传入变量的方式解决,但是貌似又不总是那么可靠,还好,java给了我们另外的接口Callable和Future. 我们先来看看他们的结构: public interface Callable{ V call() throws Except...
分类:编程语言   时间:2015-04-09 11:59:52    阅读次数:135
Camera GPS标志设置的应用
Camera GPS标志设置的应用LocationManager/* * Copyright (C) 2011 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in com...
分类:其他好文   时间:2015-04-08 13:18:04    阅读次数:245
python中的异常捕获怎么用?
http://www.2cto.com/kf/201301/184121.htmlhttp://www.w3cschool.cc/python/python-exceptions.htmltry: a=b b=c except Exception,e: #except后面加异常种类 pr...
分类:编程语言   时间:2015-04-08 12:57:22    阅读次数:121
LINQ标准查询操作符(三)——Aggregate、Average、Distinct、Except、Intersect、Union、Empty、DefaultIfEmpty、Range、Repeat
本文来自:http://blog.csdn.net/xuejianwu/article/details/6931903七、聚合操作符聚合函数将在序列上执行特定的计算,并返回单个值,如计算给定序列平均值、最大值等。共有7种LINQ聚合查询操作符:Aggregate、Average、Count、Long...
分类:其他好文   时间:2015-04-07 17:29:17    阅读次数:230
[leetcode]Single Number II
Given an array of integers, every element appears three times except for one. Find that single one.Note: Your algorithm should have a linear runtime complexity. Could you implement it without using ex...
分类:其他好文   时间:2015-04-05 14:42:18    阅读次数:138
第一次碰到try-except(core python programming 2nd Edition 3.6)
1 # coding: utf-8 # 使用Windows系统,首行'#!/usr/bin/env Pyton'无用,全部改为'# coding: utf-8' 2 3 'readtextfile.py -- read and display text file' 4 5 # get file...
分类:编程语言   时间:2015-04-04 11:52:42    阅读次数:193
Lintcode: Single Number III
Given 2*n + 2 numbers, every numbers occurs twice except two, find them.ExampleGiven [1,2,2,3,4,4,5,3] return 1 and 5ChallengeO(n) time, O(1) extra sp...
分类:其他好文   时间:2015-04-04 06:49:31    阅读次数:165
Codeforces Round #186 (Div. 2)---D. Ilya and Roads
Everything is great about Ilya’s city, except the roads. The thing is, the only ZooVille road is represented as n holes in a row. We will consider the holes numbered from 1 to n, from left to right.Ily...
分类:其他好文   时间:2015-04-03 09:29:26    阅读次数:145
Single Number II
Given an array of integers, every element appearsthreetimes except for one. Find that single one./** * 将整数所有位相加对3取余,剩下的就是只出现一次的数 * @param A ...
分类:其他好文   时间:2015-04-03 09:07:43    阅读次数:121
Python异常处理
一个程序要保持稳定运行必须要有异常处理,本文将简单介绍Python中的try…except..异常处理语句的使用。...
分类:编程语言   时间:2015-04-01 15:34:23    阅读次数:169
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