JAVA实验二 李建新 计科11-3班.docx

Java语言及网络编程实验报告姓 名： 李建新 学 号： 08113410 班 级： 计科11-3 指导老师： 姜立群 实验二1. 编一程序，求两个正整数m、n的最大公约数。要求程序中有两个方法，分别使用循环和递归，最后在主方法中两次求解并输出最大公约数。实验代码：import java.util.Scanner;public class showlogicerror public static void main(String args)Scanner numb=new Scanner(System.in);int n=numb.nextInt();int m=numb.nextInt();int r,M=1;dor=m%n;if(r=0) M=n;break;else m=n;n=r;while(r!=0);numb.close();System.out.print(M);实验结果：2.使用类编写程序(在程序中定义类，然后在主方法中创建类的对象，并调用该类中的方法，观察所得结果。实验代码：package exercise;public class classprogram public static void main(String args)Tool tool1 = new Tool(剪刀,2000);tool1.Print();tool1.setTname(锤子);tool1.setTyear(2014);tool1.Print();House house1 = new House(普通房子,20,10,3);house1.Print();house1.setHname(教室);house1.setHwidth(5);house1.Print();package exercise;public class House private String Hname;private int Hlength;private int Hwidth;private int Hheight;public House(String Hname,int Hlength,int Hwidth,int Hheight)this.Hname = Hname;this .Hlength = Hlength;this .Hwidth = Hwidth;this .Hheight = Hheight;public void Print()System.out.println(房子名称：+getHname();System.out.println(房子长度+this.Hlength);System.out.println(房子宽度+this .Hwidth);System.out.println(房子高度+this.Hheight);public void setHname(String Hname)this.Hname = Hname;public String getHname()return Hname;public void setHwidth(int Hwidth)this.Hwidth = Hwidth;public int getHwidth()return Hwidth;package exercise;public class Tool private String Tname;private int Tyear;public Tool(String Tname,int Tyear)this.Tname = Tname;this.Tyear = Tyear;public void Print()System.out.println(工具名称：+getTname();System.out.println(制造年份：+getTyear();public void setTname(String Tname)this.Tname = Tname;public String getTname()return Tname;public void setTyear(int Tyear)this.Tyear = Tyear;public int getTyear()return Tyear;实验结果：3. 利用题2中的类和继承编写程序。 ( 在主方法中创建子类的对象,并调用类中的方法,观察所得结果。)实验代码：package exercise;class Classroom extends House private String schoolName;public Classroom(String Hname, int Hlength, int Hwidth, int Hheight,String schoolName) super(Hname, Hlength, Hwidth, Hheight);this.schoolName = schoolName; public void Print1()super .Print();System.out.println(学校名称：+getschoolName();public void setschoolName(String schoolName)this.schoolName = schoolName;public String getschoolName()return schoolName;package exercise;public class Pen extends Tool private int Weight;public Pen(String Tname, int Tyear,int Weight) super(Tname, Tyear);this.Weight = Weight;public void Printf1()super.Print();System.out.println(工具重量+getWeight();public void setWeight(int Weight)this.Weight = Weight;public int getWeight()return Weight;package exercise;public class classprogram public static void main(String args)Classroom room = new Classroom(普通房子,20,10,5,);room.Print1();System.out.println();room.setschoolName(中国矿业大学);room.Print1();System.out.println();Pen pen1 = new Pen(钢笔, 2014,10);pen1.Printf1();System.out.println();pen1.setWeight(20);pen1.Printf1();实验结果：4. 编写一个包含圆类的程序，并为圆类设计几个构造方法，编译并运行它。实验代码：package exercise;public class Circle private int x,y,r;public Circle() x=y=r=0;Circle(int x,int y,int r)this.x = x;this.y = y;this.r = r;public void setxy(int x,int y)this.x = x;this.y = y;public void setr(int r)this.r = r;public double circumference()return 2*3.14*r;public double area()return 3.14*r*r;public void Print()System.out.println(圆心坐标:(+x+,+y+);System.out.println(圆的半径+r);package exercise;public class circle2 public static void main(String args) Circle c = new Circle(6,6,5);c.Print();System.out.print(圆c周长为：+c.circumference();System.out.println(圆c的面积为：+c.area();实验结果： 6. 编写一个含有5个类的程序：实验代码：package exercise;public class Boss public static void main(String args) Classes class1= new Classes(cs-11-3);class1.studentlist();package exercise;public class Person private int id;private String name;private String sex;public Person(int id,String name,String sex )this.id = id; = name;public void setid(int id)this.id = id;public int getid()return id;public void getname(String name) = name;public String getname()return name;package exercise;public class Student extends Person private String sclass;public Student(int id, String name, String sex,String sclass) super(id, name, sex);this.sclass = sclass;public void setsclass(String sclass)this.sclass = sclass;public String getsclass()return sclass;package exercise;public class Classes private String classname;private Student students;public Classes(String classname) this.classname = classname;public void studentlist()System.out.println(学生名单：);students = new Student5;students0 = new Student(3408, 何小伟, 男,cs-09-11);students1 = new Student(3409, 付良帅, 男,cs-09-11);students2 = new Student(3410, 李建新, 男,cs-09-11);students3 = new Student(3411, 李维维, 男,cs-09-11);students4 = new Student(3412, 李耀堂, 男,cs-09-11);for (int i = 0; i 5; i+) System.out.print(学号：+studentsi.getid()+ );System.out.print(姓名：+studentsi.getname()+ );System.out.println(班级：+studentsi.getsclass()+ );package exercise;public class Teacher extends Person private String major;public Teacher(int id, String name, String sex,String major) super(id, name, sex);this.major = major;public void setmajor(String major)this.major = major;public String getmajor()return major;实验结果：7. 编写一个含有三个包的程序(参考题8中的类)： 第一个包：人员包，其中有学生和教师两个类； 第二个包：管理包，其中有班级和师资(教师对象构成的数组)两个类，分别有建立和输出班级和师资的方法； 第三个包：使用包，只有一个类，其中有主方法，主方法中创建一个师资类对象，调用它的方法建立一个含有3个教师的师资，然后调用方法输出师资。 实验代码：package user;import manager.Teachersource;public class Boss public static void main(String args) Teachersource teaso = new Teachersource4;teaso0 = new manager.Teachersource(CUMT, 1010, 张田,美术);teaso1 = new manager.Teachersource(CUMT, 1011, 李逵,武术);teaso2 = new manager.Teachersource(CUMT, 1012, 晓松,世界史);teaso3 = new manager.Teachersource(CUMT, 1013, 科斯,经济学); System.out.pr