java – 业余语言练习

java build and run 添加临时变量

root135@root135:~/Downloads/java_0/main方法和System类/main_and_System$ java -cp bin src/LearnMain.java 12 34 55 3 12 34 55

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java -cp

root135@root135:~/Downloads/java_0/可见性修饰符/car$ ls bin group src Test.java root135@root135:~/Downloads/java_0/可见性修饰符/car$ javac -d bin src/*.java Test.java root135@root135:~/Downloads/java_0/可见性修饰符/car$ java -cp bin src/Car.java src/Battery.java Test.java MAX_P=2200 我是一块1度的电池,满电可以跑75公里 我是一块100度的电池,满电可以跑600公里 返回值:80.0 成员变量值:80.0 实参的值没被改变!100 220 220 root135@root135:~/Downloads/java_0/可见性修饰符/car$ java -cp src/*.java *.java MAX_P=2200 我是一块1度的电池,满电可以跑75公里 我是一块100度的电池,满电可以跑600公里 返回值:80.0 成员变量值:80.0 实参的值没被改变!100 220 220 root135@root135:~/Downloads/java_0/可见性修饰符/car$

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java error package

error: end of path to source file does not match its package name car

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javac java 封装、签名和重载

root135@root135:~/Downloads/java_0/car_1/car_1$ mkdir bin root135@root135:~/Downloads/java_0/car_1/car_1$ tree . ├── bin └── src ├── Battery.java └── Car.java 2 directories, 2 files

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javac package

root135@root135:~/Downloads/java_0/school$ ls school_0 root135@root135:~/Downloads/java_0/school$ javac -d school/bin/ school/Personal.java root135@root135:~/Downloads/java_0/school$ tree . ├── school │   ├── bin │   │   └── school │   │   ├── library │   │   │   ├── Book.class │   │   │   └── Computer.class │   │   └── Personal.class │   ├── library │   │   ├── Book.java │   │   └── Computer.java │   ├── Personal.java │   ├── room… Continue reading javac package

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