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GeezerVison is showing github.com — notes/java/javaNote.txt at master · midgithub/notes Expand file tree/ Copy pathjavaNote.txtMore file actions 9 lines (8 loc) · 491 Bytes / Copy pathjavaNote.txtFile metadata and controls9 lines (8 loc) · 491 Bytes 1 2 3 4 5 6 7 8 9 源文件名必须和类名相同,一个源文件中只能有一个public类 javac 命令用于将 java 源文件编译为 class 字节码文件 javac -encoding UTF-8 JavaTest.java java 命令可以运行 class 字节码文件 单继承,单继承,同c# 语音本身不支持多平台，因为有虚拟机 Java程序在Java平台上被编译为字节码格式,Java解释器对这些字节码进行解释执行(解释型) package com.sen.androidfirst //包声明，及命名空间，在源文件的首行 import java.io.*; //在package 后面，使用某命名空间，using 命令编译器载入java_installation/java/io路径下的所有类 |
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