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How to check that a string is an int, but not a double, etc.?

PHP has an intval() function that will convert a string to an integer. However I want to check that the string is an integer beforehand, so that I can give a helpful error message to the user if it's wrong. PHP has is_int() , but that returns false for string like "2" . ...
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How to convert a string Date to long millseconds

I have a date inside a string, something like "12-December-2012". How can I convert this into milliseconds (long)? 9 Answer...
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Remove multiple spaces and new lines inside of String

Suppose we have string like this: 9 Answers 9 ...
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Convert HTML to NSAttributedString in iOS

...the UIWebView I want to display it using Core Text with a NSAttributedString . 16 Answers ...
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How can I convert an image into a Base64 string?

What is the code to transform an image (maximum of 200 KB) into a Base64 String? 14 Answers ...
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How to POST raw whole JSON in the body of a Retrofit request?

...s JSON as the sole body of the request. public class FooRequest { final String foo; final String bar; FooRequest(String foo, String bar) { this.foo = foo; this.bar = bar; } } Calling with: FooResponse = foo.postJson(new FooRequest("kit", "kat")); Will yield the following body:...
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Make an HTTP request with android

...yteArrayOutputStream(); response.getEntity().writeTo(out); String responseString = out.toString(); out.close(); //..more logic } else{ //Closes the connection. response.getEntity().getContent().close(); throw new IOException(statusLine.getR...
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Difference between Convert.ToString() and .ToString()

What is the difference between Convert.ToString() and .ToString() ? 19 Answers 19 ...
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Best way to display decimal without trailing zeroes

Is there a display formatter that will output decimals as these string representations in c# without doing any rounding? 14...
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Removing whitespace from strings in Java

I have a string like this: 35 Answers 35 ...