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Access denied for user 'root'@'localhost' while attempting to grant privileges. How do I grant privi

...here ... Now, what's missing then ? On my system, I get this: mysql> select version(); +------------+ | version() | +------------+ | 5.5.21-log | +------------+ 1 row in set (0.00 sec) mysql> SHOW GRANTS FOR 'root'@'localhost'; +------------------------------------------------------------...
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Read stream twice

...ou can't you'll have to open a stream again. Another solution would be to convert InputStream to byte array, then iterate over the array as many time as you need. You can find several solutions in this post Convert InputStream to byte array in Java using 3rd party libs or not. Caution, if the read ...
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多图选择器使用指导 · App Inventor 2 中文网

...1.Text = join("选中 ", length(路径列表), " 张") 图像1.Picture = select(路径列表, 1) } 案例一:发帖选图,显示前三张缩略图 最多选 9 张,界面上用三个图像组件预览前三张,其余显示「+N」: global 已选 = [] when 按...
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Why is null an object and what's the difference between null and undefined?

... null true A common way of checking whether a variable has a value is to convert it to boolean and see whether it is true. That conversion is performed by the if statement and the boolean operator ! (“not”). function foo(param) { if (param) { // ... } } function foo(param) { ...
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String.replaceAll single backslashes with double backslashes

I'm trying to convert the String \something\ into the String \\something\\ using replaceAll , but I keep getting all kinds of errors. I thought this was the solution: ...
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How can I access my localhost from my Android device?

...n be done with the following: Open Settings Go to Network & Internet Select WiFi in the left menu Tap on the name of the connected WiFi Set the Network Profile of the network to be Private If you are having an issue, it is most likely to do with Windows Firewall. Open Control Panel Go to W...
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How do I add a foreign key to an existing SQLite table?

...n step 8 below. One way to do this is to run a query like the following: SELECT type, sql FROM sqlite_master WHERE tbl_name='X'. Use CREATE TABLE to construct a new table "new_X" that is in the desired revised format of table X. Make sure that the name "new_X" does not collide with any exi...
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Hashing a dictionary?

...thon 3.3 returns different results between sessions). make_hashable() will convert the object into nested tuples and make_hash_sha256() will also convert the repr() to a base64 encoded SHA256 hash. import hashlib import base64 def make_hash_sha256(o): hasher = hashlib.sha256() hasher.updat...
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How do I get my solution in Visual Studio back online in TFS?

...t-click on the solution name right at the top of the Solution Explorer and select the Go Online option. Clicking this allowed me to select the files that had been changed when I was offline and make the solution online again. After finding the solution, I found the following msdn forum thread which...
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Images can't contain alpha channels or transparencies

...rt to PNG without alpha in Preview. Simply open your image, choose export, select PNG, uncheck Alpha, and click Save. Preview also support batch export if you open all your images at once. – Russell Ladd Jan 7 '15 at 6:23 ...