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参考Java的官方tutorial和Doc整理如下。What is EnumAn enum type is a special data type.It enablesfor a variable to be a set of predefined constants.Because they ar... 阅读全文
posted @ 2015-11-09 23:31
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In Java, a method signature is the method name and the number and type of its parameters. Return types and thrown exceptions are not considered to be ... 阅读全文
posted @ 2015-11-09 22:48
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Reference: JavaPointBeginnerBookWhat is BindingConnecting a method call to the method body is known as binding.There are two types of bindingstatic bi... 阅读全文
posted @ 2015-11-09 22:47
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阅读Java的官方Doc，总结如下。What is InterfaceAn interface is a reference type, similar to a class, that can contain onlyconstants (implicitly public, static, fi... 阅读全文
posted @ 2015-11-09 12:48
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阅读了Java的官方Doc，在此总结如下。Abstract Class & MethodIn jave, "abstract" can be a modifier to class and method.Abstract class:A class that is declared abstract... 阅读全文
posted @ 2015-11-09 12:12
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QuestionWrite a program to find then-th ugly number.Ugly numbers are positive numbers whose prime factors only include2, 3, 5. For example,1, 2, 3, 4,... 阅读全文
posted @ 2015-11-09 06:13
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QuestionThere are a row ofnhouses, each house can be painted with one of thekcolors. The cost of painting each house with a certain color is different... 阅读全文
posted @ 2015-11-09 05:21
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QuestionThere are a row ofnhouses, each house can be painted with one of the three colors: red, blue or green. The cost of painting each house with a ... 阅读全文
posted @ 2015-11-09 03:57
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QuestionDesign an algorithm to encodea list of stringstoa string. The encoded string is then sent over the network and is decoded back to the original... 阅读全文
posted @ 2015-11-09 03:19
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