linear-optimization

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Grayscale image with colored spotlight in JavaFX

I need a way to have a gray scale image in an ImageView and on mouse moved if the cursor position is in the ImageView bounds to show a colored spotlight on the mouse position.[详细]

2022-12-25 01:34 分类：问答
Android Wear版Blue Link应用，手表就是车钥匙？

去年以来，各大汽车厂商纷纷选择在CES(国际消费电子展)上发布最新技术和产品，这使得CES成为继法兰克福、东京、日内瓦、巴黎、北美国际车展之后，全球第六大车展。今年，这种趋势显然不会停止，只会变得更糟。[详细]

2022-12-24 19:59 分类：问答
Two drop down lists in Ajax and MySQL

I\'m trying to learn some Ajax and MySQL... Basically, the code that I have right now is similar to: http://www.w3schools.com/PHP/php_ajax_database.asp[详细]

2022-12-24 17:02 分类：问答
Adding object to an NSMutableSet automatically when it's initiated... (iphone)

I have this problem adding an object to NSSet... The NSM开发者_Go百科utableSet *set \"belongs\" to main ViewController.[详细]

2022-12-24 08:35 分类：问答
Can I override and overload static methods in Java?

I\'d like to know: Why can\'t static methods be overridden in Java? Can static methods be ov开发者_运维知识库erloaded in Java?[详细]

2022-12-23 04:51 分类：问答
阴阳师怎么打开智能施法？

马亮开发者_开发百科 2022-05-05 09:44 操作方法01开启这个系统本身的技巧并不难，我们只要点击设置界面的交互选项栏目即可。02然后我们找到智能施法，我们把他前面的那个框点上勾就行了。03优化之后的系统，当[详细]

2022-12-22 10:45 分类：问答
PostgreSQL pgdb driver raises "can't rollback" exception

for some reason I\'m experiencing the Oper开发者_StackOverflow中文版ational Error with \"can\'t rollback\" message when I attempt to roll back my transaction in the following context:[详细]

2022-12-22 07:54 分类：问答
sed or awk multiline replace

I am trying to append formatting to all /* TODO : ...*/ tags, but I am having trouble in the multi-line area. I can do single line sed\'s; but for multiline sed and awk, I don\'t know.[详细]

2022-12-22 07:46 分类：问答
Show message on click of a button in ASP.net

I have a Gridview, a label and a Button in ASP.net. If the total number of records in the g开发者_如何学Goridview is more than 500 and if the user clicks on the button, a message \"You cannot print m[详细]

2022-12-22 07:44 分类：问答
EC2 .NET website installation error

I am trying to install my ASP.NET 3.5 website on EC2 windows instance and i get this error although i am running it under the admin user:[详细]

2022-12-21 22:38 分类：问答