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RSS订阅原创 Unix File System
The Unix file system is characterized by:1.a hierarchical structure.2.consistend treatment of file data.3.the ability to create and delete files.4.dynamic growth of files.5.the protection of
2017-01-14 16:17:21
500
原创 Unix System brief structure
1.Hardware2.Kernel3.ProgramsWe'd better view the system as a set of layers.The Hardware offer the basic services to Unix,and the Kernel insulating them. Programs interact with the Kernel
2017-01-14 15:42:34
267
原创 History of Unix operating system
1.1965,Bell Telehpone Laboratories develop a new operating system called Multics.2.1973,the Unix OS was rewritten in C.3.1977,Unix were first ported to a non-PDP machine.4.1983,Bell Laboratories
2017-01-14 15:33:26
530
原创 Java Method Overloading
1.You refer to a method by using the name of the method,A method is name name for an action.The same word expresses a number of different meanings---it's overloaded.2.the method overloading is essen
2015-07-20 15:44:21
573
原创 Java Constructor
1.Constructor was introduced in C++,Java adopted it from C++.2.A constructor is a special method automatically called when an object is created.(also means to initialize the object).3.The name of
2015-07-20 15:03:30
337
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