第三次作业

0.music

package disici;
import java.util.*;
class instrument{
	private static String a;
	
    public instrument(String s) {
	
	}

	public void play()
     {
       System.out.println("弹奏乐器");
     }
}
class brass extends instrument{
	public brass(String s) {
		super(s);
		}
	public void play()
	    {
	        System.out.println("弹奏乐器");
	    }
	    public void play2() {
	    	System.out.println("弹奏bress！");
	    }
}

class  wind extends instrument  {

	public wind(String s) {
		super(s);
		}
	public void play()
	    {
	        System.out.println("弹奏乐器");
	    }
	    public void play2() {
	    	System.out.println("弹奏wind！");
	    }
	
}
 
public class music {
   public static void tune(instrument i) {
    	i.play();
   } public static void main(String[]args) {
	   Scanner ex=new Scanner(System.in);
		int n=ex.nextInt();
		music a=new music();
		wind b=new wind(null);
		brass c=new brass(null);
		instrument s=new instrument(null);
		a.tune(s);
		a.tune(b);
		a.tune(c);
    	}
}

　　

1.mokey

package disici;
import java.util.*;

class mokey{
	private static String a;
	String s;
    public mokey(String s) {
		this.s=s;
	}
    public void speak()
     {
       System.out.println("咿咿呀呀");
     }
}
class people extends mokey{

	public people(String s) {
		super(s);
		}
	public void speak()
	    {
	        System.out.println("小样的，不错嘛！会说话了！");
	    }
	    public void think() {
	    	System.out.println("别说话！认真思考！");
	    }
	
}

  
public class s {
 public static void main(String[] args) {
	String s;
	Scanner ex=new Scanner(System.in);
	s=ex.nextLine(); 
	mokey e1=new mokey(s);
	people e2=new people(s);
	e1.speak();
	e2.speak();
	e2.think();
	
    }


}

　　2.矩形

package disici;
import java.util.*;
class juxing
{
	private String a;
	private String b;
	public juxing(String a) {
		this.a=a;
		this.b=b;
	}
	public void seta() {
		this.a=a;
	}
	public int geta(int a) {
		return a;
	}
	public void setb() {
		this.b=b;
	}
	public int getb(int b) {
		return b;
	}
	public int s(int a,int b) {
		return a*b;
	}
}
class changfangti{
	private String a;
	private String b;
	private String c;
	public void seta() {
		this.a=a;
	}
	public int geta(int a) {
		return a;
	}
	public void setb() {
		this.b=b;
	}
	public int getb(int b) {
		return b;
	}
	public void setc() {
		this.c=c;
	}
	public int getc(int c) {
		return c;
	}
	public static int v(int a,int b,int c) {
		return a*b*c;
	}
}
public class ee {
public static void main(String[]args) {
	Scanner ex=new Scanner(System.in);
	System.out.println("请输入长:");
	int a=ex.nextInt();
	ex.nextLine();
	System.out.println("请输入宽:");
	int b=ex.nextInt();
	ex.nextLine();
	System.out.println("请输入高:");
	int c=ex.nextInt();
	ex.nextLine();
	juxing e1=new juxing(null);
	changfangti e2=new changfangti();
	e1.geta(a);
	e1.geta(b);
	e2.geta(a);
	e2.getb(b);
	e2.getc(c);
	System.out.println("底面积："+e1.s(a,b)+"体积："+e2.v(a, b,c));
}


}

　　3.汽车

package disici;
import java.util.*;
class vehicle{
	private String wheels;
	private String weight;
    public void setwheels() {
		this.wheels=wheels;
	}
	public int getwheels(int wheels) {
		return wheels;
	}
	public void setweight() {
		this.weight=weight;
	}
	public int getweight(int weight) {
		return weight;
	}
	public void measge(int wheels,int weight) {
		System.out.println("轮胎数："+wheels+"重量："+weight);
	}
}
class car extends vehicle {
	private String loader;
    public void setloader() {
		this.loader=loader;
	}
	public int getloader(int loader) {
		return loader;
	}
	public void measge(int loader) {
		System.out.println("载人数："+loader);
	}
}
class  Truck extends car{
	private String payload;
    public void setpayload() {
		this.payload=payload;
	}
	public int getpayload(int payload) {
		return payload;
	}
	public void measge(int payload) {
		System.out.println("载重量："+payload);
	}
}
public class qiche {
  public static void  main(String[]args) {
	  Scanner ex=new Scanner(System.in);
	  System.out.println("请输入轮胎数：");
	  int wheels=ex.nextInt();
	  ex.hasNextLine();
	  System.out.println("请输入重量：");
	  int weight=ex.nextInt();
	  ex.hasNextLine();
	  System.out.println("请输入载人数：");
	  int loader=ex.nextInt();
	  ex.hasNextLine();
	  System.out.println("请输入载重：");
	  int payload=ex.nextInt();
	  ex.hasNextLine();
	  vehicle e1=new vehicle();
	  car e2=new car();
	  Truck e3=new Truck();
	  e1.getwheels(wheels);
	  e1.getweight(weight);
	  e2.getloader(loader);
	  e3.getpayload(payload);
	  e1.measge(wheels,weight);
	  e2.measge(loader);
	  e3.measge(payload);
  }
}