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How to get the insert ID in JDBC?

... Statement.RETURN_GENERATED_KEYS); ) { statement.setString(1, user.getName()); statement.setString(2, user.getPassword()); statement.setString(3, user.getEmail()); // ... int affectedRows = statement.executeUpdate(); if (affectedRows =...
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Why does isNaN(“ ”) (string with spaces) equal false?

... JavaScript interprets an empty string as a 0, which then fails the isNAN test. You can use parseInt on the string first which won't convert the empty string to 0. The result should then fail isNAN. ...
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php中json_decode()和json_encode()的使用方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...对 JSON 格式的字符串进行编码 说明: mixed json_decode ( string $json [, bool $assoc ] ) 接受一个 JSON 格式的字符串并且把它转换为 PHP 变量 参数: json 待解码的 json string 格式的字符串。 assoc 当该参数为 TRUE 时,将返回 array ...
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@RequestParam vs @PathVariable

...equest, the values for param1 and param2 can be accessed as below: public String getDetails( @RequestParam(value="param1", required=true) String param1, @RequestParam(value="param2", required=false) String param2){ ... } The following are the list of parameters supported by the @Reque...
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How do I compare two strings in Perl?

How do I compare two strings in Perl? 6 Answers 6 ...
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endsWith in JavaScript

How can I check if a string ends with a particular character in JavaScript? 31 Answers ...
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Sending HTTP POST Request In Java

... well defined format. We need to convert our input to this format: Map<String,String> arguments = new HashMap<>(); arguments.put("username", "root"); arguments.put("password", "sjh76HSn!"); // This is a fake password obviously StringJoiner sj = new StringJoiner("&"); for(Map.Entry&l...
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Execute a terminal command from a Cocoa app

... launch]; NSData *data = [file readDataToEndOfFile]; [file closeFile]; NSString *grepOutput = [[NSString alloc] initWithData: data encoding: NSUTF8StringEncoding]; NSLog (@"grep returned:\n%@", grepOutput); NSPipe and NSFileHandle are used to redirect the standard output of the task. For more ...
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Encoding as Base64 in Java

....encodeBase64("Test".getBytes()); System.out.println("encodedBytes " + new String(encodedBytes)); byte[] decodedBytes = Base64.decodeBase64(encodedBytes); System.out.println("decodedBytes " + new String(decodedBytes)); Then read why you shouldn't use sun.* packages. Update (2016-12-16) You can...
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Is there a version of JavaScript's String.indexOf() that allows for regular expressions?

In javascript, is there an equivalent of String.indexOf() that takes a regular expression instead of a string for the first first parameter while still allowing a second parameter ? ...