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609 B
609 B
基础题
功能：实现Shape父类，Circle、Rectangle子类重写draw()方法，多态调用绘制图形
核心文件：Shape.java、Circle.java、Rectangle.java、ShapeTest.java
运行：编译javac *.java，执行java ShapeTest
结果：输出通用图形、圆形、矩形绘制语句
进阶题
功能：Vehicle抽象类定义run()抽象方法，Car/Bike/Truck子类实现，数组遍历实现多态
核心文件：Vehicle.java、Car.java、Bike.java、Truck.java、VehicleTest.java
运行：编译javac *.java，执行java VehicleTest
结果：输出不同交通工具行驶语句