用JAVA编写一个Square(正方形)类该类包含如下内容:(1) 一个double类型的private实例变量side(2) 一个将side设置为1.0的不带参数的构造方法(3) 一个setSide方法,该方法可将变量side的值设置为方法的参数值,还要确保side不能小于0.0,如果小于,则使用默认值(4) 一个getSide方法,获取实例变量side的值(5) 一个...
java设计一个Shpe接口和它的两个实现类Square和circle,要求如下: (1)Shape接口中有一要求如下: (1)Shape接口中有一个抽象方法area()
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【题目】java作业2、创建一个接口,表示一个图形interface Shape{}要求1}接口中包含求解图形面积和周长的抽象方法。2)设计类Square(矩形),Triangle(三角形),Circle(圆)实现Shape接口。3)在2)中设计的类中,要求根据各自的特点,设计类成员变量,构造方法4)设计类class Ex32,在该类中包含主方法,该方法创建2)中各个...
1 1:java 编写一个表示立方体的类Cube,它继承自类Square,还包含有表示立方体高的Drotected类型的成员变量h,计算立方体体积的public方法volume().2:java 建立两个Cube类的对象Cube1和Cube2,输出其体积的值.每个类中应包含有参数的构造方法,用于对成员变量的初始化.子类的构造方法中必须有调用其父类构造方法的语句...
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