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Difference between Mutable objects and Immutable objects [duplicate]

Any one please give the diff between Mutable objects and Immutable objects with example. 5 Answers ...
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When to use margin vs padding in CSS [closed]

...lar rule or guideline that should be used in deciding when to use margin and when to use padding ? 16 Answers ...
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How does autowiring work in Spring?

... First, and most important - all Spring beans are managed - they "live" inside a container, called "application context". Second, each application has an entry point to that context. Web applications have a Servlet, JSF uses a el-re...
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Make $JAVA_HOME easily changable in Ubuntu [closed]

In Ubuntu, I'd like to switch my JAVA_HOME environment variable back and forth between Java 5 and 6. 8 Answers ...
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What is the better API to Reading Excel sheets in java - JXL or Apache POI [closed]

... I have used both JXL (now "JExcel") and Apache POI. At first I used JXL, but now I use Apache POI. First, here are the things where both APIs have the same end functionality: Both are free Cell styling: alignment, backgrounds (colors and patterns), borders ...
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PHP DateTime::modify adding and subtracting months

I've been working a lot with the DateTime class and recently ran into what I thought was a bug when adding months. After a bit of research, it appears that it wasn't a bug, but instead working as intended. According to the documentation found here : ...
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Any reason not to use '+' to concatenate two strings?

...e Python interpreter has to create a new string object for each iteration, and it ends up taking quadratic time. (Recent versions of CPython can apparently optimize this in some cases, but other implementations can't, so programmers are discouraged from relying on this.) ''.join is the right way t...
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Is it worthwile to learn assembly language? [closed]

...you have to hunt out obsessives on the net. I think it's useful to understand what happens at the lower levels. As you research assembler you will learn about cpu pipelining, branch prediction, cache alignment, SIMD, instruction reordering and so on. Knowledge of these will help you write better hi...
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Is GridFS fast and reliable enough for production?

I develop a new website and I want to use GridFS as storage for all user uploads, because it offers a lot of advantages compared to a normal filesystem storage. ...
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Difference between static and shared libraries?

What is the difference between static and shared libraries? 8 Answers 8 ...