大约有 47,000 项符合查询结果(耗时:0.0809秒) [XML]

https://stackoverflow.com/ques... 

What is the “continue” keyword and how does it work in Java?

... placeholder in order to make an empty loop body more clear. for (count = 0; foo.moreData(); count++) continue; The same statement without a label also exists in C and C++. The equivalent in Perl is next. This type of control flow is not recommended, but if you so choose you can also use cont...
https://stackoverflow.com/ques... 

Detect Retina Display

...unning iOS4+ and if the [UIScreen mainScreen].scale property is equal to 2.0. You CANNOT assume a device is running iOS4+ if the scale property exists, as the iPad 3.2 also contains this property. On an iPad running iOS3.2, scale will return 1.0 in 1x mode, and 2.0 in 2x mode -- even though we kno...
https://stackoverflow.com/ques... 

Should I use Java date and time classes or go with a 3rd party library like Joda Time?

... answered Feb 26 '09 at 10:16 Jon SkeetJon Skeet 1211k772772 gold badges85588558 silver badges88218821 bronze badges ...
https://stackoverflow.com/ques... 

How to get a complete list of ticker symbols from Yahoo Finance? [closed]

...;IDSearchResult> resp3 = dl2.Download(index); int i = 0; foreach (var item in resp3.Result.Items) { writeStream.WriteLine(item.ID + "|" + item.ISIN + "|" + item.Name + "|" + item.Exchange + "|" + item.Type + "|" + item.Industry...
https://stackoverflow.com/ques... 

Random String Generator Returning Same String [duplicate]

... 307 You're making the Random instance in the method, which causes it to return the same values when...
https://stackoverflow.com/ques... 

iPad/iPhone hover problem causes the user to double click a link

... 208 +50 Haven't ...
https://stackoverflow.com/ques... 

How can I declare optional function parameters in Javascript? [duplicate]

... With ES6: This is now part of the language: function myFunc(a, b = 0) { // function body } Please keep in mind that ES6 checks the values against undefined and not against truthy-ness (so only real undefined values get the default value - falsy values like null will not default). Wit...
https://stackoverflow.com/ques... 

How to create a new object instance from a Type

...| edited Nov 8 '17 at 15:40 Jay 14433 silver badges1616 bronze badges answered Aug 3 '08 at 16:35 ...
https://stackoverflow.com/ques... 

What's the difference between a catalog and a schema in a relational database?

...st place. An Introduction to Database Systems, 7th ed., C.J. Date, p 69-70. From the SQL standard point of view : Catalogs are named collections of schemas in an SQL-environment. An SQL-environment contains zero or more catalogs. A catalog contains one or more schemas, but always contains...
https://stackoverflow.com/ques... 

HTML: How to limit file upload to be only images?

... answered Oct 13 '09 at 19:32 Ms2gerMs2ger 14.5k66 gold badges3333 silver badges3535 bronze badges ...