Java entry (5) -- String/string class, entry String
In the previous example, there was a String example. Some friends certainly didn't know what to do. In fact, the String class is a special class in Java, namely the String class. It is not one of
Baidu's interviewer askedString a= "ABC";String B=new string ("ABC");These two values, a, B are equal, if all go inside HashSet, can put down?A: A==b, but A.equals (B) is equal, because it is equal, so all go to hashset inside, can only put aThis
1-Hierarchical inheritance2-Variable and immutable concepts3-string3.1-string is a very special class3.2-string literals vs. String objectsMethods of 3.3-string3.3.1-length ()3.3.2-concat (String)3.3.3-indexof (..)3.3.4-substring (..)3.3.5-replace3.3
1. Stacks and heaps (heap) are places that Java uses to store data in RAM. Unlike C + +, Java automatically manages stacks and heaps, and programmers cannot directly set up stacks or heaps.2. The advantage of the stack is that the access speed is
toString (), string,string.valueof
Reference: The difference between StringBuffer and string http://t240178168.iteye.com/blog/1667215
Common methods are object#tostring (), (String) objects to be converted, string.valueof (object), and so on.
The
Question:There is no precedent for developing Web applications with "easy language. Flying" (EF. However, because the EF Local Development Kit (efndk) has been released, it is not difficult to use C/C ++ to develop an EF class library to support EF
Link: http://blog.csdn.net/debugconsole/article/details/8677313
The reason to discard char* strings and select the String class in the C + + standard library is because he compares with the former, doesn't have to worry about enough memory, string
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