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There are two ways to get sharedpreferences:
1 Call the getsharedpreferences() method of the context object.
2 Call the getpreferences() method of the activity object.
The difference between the two ways:
The SharedPreferences object obtained by calling the getsharedpreferences() method of the context object can be shared by other components under the same application.
The sharedpreferences object obtained by calling the getpreferences() method of the activity object can only be used in that activity.
There are four modes of operation for sharedpreferences:
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It should be readable!
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Programming Speech is the equivalent of what we learn in elementary school.
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Software development.
It is done step by step, software development generally includes five stages of requirements analysis, outline design, detailed design, testing, and user manuals, and the implementation part (that is, programming) is in the detailed design part, and the requirements analysis is mainly to use UML to analyze and model the software to be done, programming only accounts for a small part in the software development stage, and the metaphor upstairs is also very vivid.
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The computer can only recognize the machine language (0 or 1), the programming language is a high-level language, which can be translated into the machine language by compiling for the machine to recognize, if the software development wants to use the computer hardware, it is like the computer to send a message to tell it, it can be said that the programming language is to achieve this role, through the writing of some process control to send messages to various hardware of the computer at a regular time, used to realize software functions, the programming language is a tool for software development...
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The more complex programs are in C. But that is only written by advanced programmers and engineers, and C is the foundation that advanced programmers must master. If you really want to learn it, you need to learn C, but this thing is boring and requires perseverance.
The language is not old or new, the key depends on which one you need, C language is very old, but larger software and operating systems need it, programmers used it n years ago, but it is still outdated.
Here are the 2010 Programming Languages Rankings.
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Let's learn logo language, this is suitable for elementary school students.
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Programming languages and programming software are both programming tools, and in order to be able to use programming languages conveniently, people have invented programming software. If you are a big cow, write ** with Notepad, and then compile it in a command-line way, run...
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What does it have to do with moving your mouth and eating?
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Write** without restrictions on what software you use, if you.
Strong enough, you can write ** directly with a notepad, and compile it yourself with a makefile, and you only need to have a compiler.
However, in most cases, you can use the integrated development environment, C, C++ are more commonly used, you can use VC6, VS2003, VS2005, C++ Builder, etc.
VB can also use VS, depending on personal habits, there are many integrated development environments under Windows.
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