摘要:
编写一个Animal类,具有属性:种类;具有功能:吃、睡。定义其子类Fish 阅读全文
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21.编写一个Java应用程序,该程序包括3个类:Monkey类、People类和主类 E。要求: (1) Monkey类中有个构造方法:Monkey (String s),并且有个public void speak() 方法,在speak方法中输出“咿咿呀呀......”的信息。 (2)Peopl 阅读全文
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package zhongqiuzuoye; public class People { protected double height; protected double weight; public double getHeight() { return height; } public void setHeight(double ... 阅读全文
摘要:
package zhongqiuzuoye; public class Instrument { public void play() { System.out.println("弹奏乐器"); } } package zhongqiuzuoye; public class Wind extends Instrument{ ... 阅读全文