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What's the difference between == and .equals in Scala?
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So why new java.lang.Integer(1) == new java.lang.Double(1.0) is true while new java.lang.Integer(1) equals new java.lang.Double(1.0) is false?
– Eastsun
Sep 13 '16 at 1:03
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How do I add a linker or compile flag in a CMake file?
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Don't set CMAKE_<LANG>_FLAGS in a toolchain. And there's no such thing as CMAKE_CXX_DEBUG_FLAGS. It's CMAKE_CXX_FLAGS_DEBUG. And you shouldn't use that either. Only set CMAKE_<LANG>_FLAGS[_<CONFIG>]_INIT in a toolchain
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How do we count rows using older versions of Hibernate (~2009)?
...er, it doesn't always return Integer instance, so it is better to use java.lang.Number for safety.
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Java: function for arrays like PHP's join()?
..., "World", "!"})
Generates:
Hello, World, !
Otherwise, Apache Commons Lang has a StringUtils class which has a join function which will join arrays together to make a String.
For example:
StringUtils.join(new String[] {"Hello", "World", "!"}, ", ")
Generates the following String:
Hello, Wo...
Jackson - Deserialize using generic class
...(){} ... But I am getting the following error - cannot access private java.lang.class.Class() from java.lang.class. Failed to set access. Cannot make a java.lang.Class constructor accessible
– gnjago
Jul 26 '12 at 19:46
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Trim a string based on the string length
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StringUtils.abbreviate from Apache Commons Lang library could be your friend:
StringUtils.abbreviate("abcdefg", 6) = "abc..."
StringUtils.abbreviate("abcdefg", 7) = "abcdefg"
StringUtils.abbreviate("abcdefg", 8) = "abcdefg"
StringUtils.abbreviate("abcdefg", 4) = "a.....
Converting timestamp to time ago in PHP e.g 1 day ago, 2 days ago…
...turn something like in 2 months etc.
you can use localization to get other languages and the pluralization works fine
if you will start using Carbon for other things working with dates will be as easy as never.
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What is the Java string pool and how is “s” different from new String(“s”)? [duplicate]
...ode code points constituting the string literal.
The Java programming language requires that identical string literals (that is, literals that contain the same sequence of code points) must refer to the same instance of class String (JLS §3.10.5). In addition, if the method String.intern is ca...
Placeholder in IE9
...<!--[if lt IE 7]><html class="no-js lt-ie10 lt-ie9 lt-ie8 lt-ie7" lang="en"> <![endif]-->
<!--[if IE 7]><html class="no-js lt-ie10 lt-ie9 lt-ie8" lang="en"> <![endif]-->
<!--[if IE 8]><html class="no-js lt-ie10 lt-ie9" lang="en"> <![endif]-->
<...
What is a NullPointerException, and how do I fix it?
What are Null Pointer Exceptions ( java.lang.NullPointerException ) and what causes them?
12 Answers
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