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Does a method's signature in Java include its return type?

...ple: public class Foo { public int myMethod(int param) {} public char myMethod(int param) {} } No, the compiler won't know the difference, as their signature: myMethod(int param) is the same. The second line: public char myMethod(int param) {} will give you can error: method is al...
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Where is Java's Array indexOf?

... is what you are looking for import org.apache.commons.lang3.ArrayUtils; String[] colours = { "Red", "Orange", "Yellow", "Green" }; int indexOfYellow = ArrayUtils.indexOf(colours, "Yellow"); share | ...
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Copying data from one SQLite database to another

...ctoriesInDomains(NSDocumentDirectory , NSUserDomainMask, YES); NSString *documentsDir = [paths objectAtIndex:0]; NSString *maindbPath = [documentsDir stringByAppendingPathComponent:@"User.sqlite"];; NSString *newdbPath = [documentsDir stringByAppendingPathComponent:@"...
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How to get a user's client IP address in ASP.NET?

...otcha: HTTP_X_FORWARDED_FOR returns multiple IP addresses" C# protected string GetIPAddress() { System.Web.HttpContext context = System.Web.HttpContext.Current; string ipAddress = context.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]; if (!string.IsNullOrEmpty(ipAddress)) { ...
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How to fix “Incorrect string value” errors?

...r noticing an application tended to discard random emails due to incorrect string value errors, I went though and switched many text columns to use the utf8 column charset and the default column collate ( utf8_general_ci ) so that it would accept them. This fixed most of the errors, and made the ...
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Efficiency of Java “Double Brace Initialization”?

...Just for reference, double brace initialization is the following: List<String> list = new ArrayList<String>() {{ add("Hello"); add("World!"); }}; It looks like a "hidden" feature of Java, but it is just a rewrite of: List<String> list = new ArrayList<String>() { ...
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Unique Constraint in Entity Framework Code First

... Starting with EF 6.1 it is now possible: [Index(IsUnique = true)] public string EmailAddress { get; set; } This will get you a unique index instead of unique constraint, strictly speaking. For most practical purposes they are the same. ...
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Format floats with standard json module

...t the json module seems to assume all custom types should be serialized as strings. Ie: you end up with the Javascript string "0.33" in the output, not the number 0.33. There may be a way yet to make this work, but it's harder than it looks. ...
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Encode html entities in javascript

...u're using UTF8 character encoding, make sure your database is storing the strings in UTF8. You still may see instances where the characters do not display correctly, depending on system font configuration and other issues out of your control. Documentation String.charCodeAt - https://developer.m...
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How do I convert an integer to string as part of a PostgreSQL query?

How do I convert an integer to string as part of a PostgreSQL query? 3 Answers 3 ...