版权声明:欢迎转载,但转载时请注明原文地址 https://blog.csdn.net/weixin_42110638/article/details/83384799
- 设计一个教师类Teacher(属于cn.net.sdkd包),要求:
- 属性有编号(int no)、姓名(String name)、年龄(int age)、所属学院(String seminary),为这些属性设置相应的get和set方法。
- 为Teacher类重写equals方法,要求:当两个教师对象的no相同时返回true。
- 重写Teacher类的toString方法,通过该方法可以返回“编号为**、姓名为**、年龄为**的**学院老师”形式的字符串。
- 由多个Teacher对象所形成的数组可以以两种方法排序(编号由低到高排序):1)使用Arrays.sort(Object[] a)方法;2)使用Arrays.sort(Object[] a, Comparator c)方法。
- 再定义一个类TeacherManagement(属于cn.sd包),提供方法search,方法可以在一组给定的教师中,根据姓名(或年龄)返回等于指定姓名(或年龄)的教师的字符串信息,信息格式为:“编号为**、姓名为**、年龄为**的**学院老师”。如果没有满足条件的教师,则返回“没有符合条件的教师”。
- 构造main方法进行测试。
这题跟接口有关
package cn.net.sdkd;
import java.util.Arrays;
import cn.sd.TeacherManagement;
public class Main {
public static void main(String[] args) {
// TODO Auto-generated method stub
Teacher t1 = new Teacher(0001,"王海涵",66,"经管");
Teacher t2 = new Teacher(0003,"舒高瑾",33,"文法");
Teacher t3 = new Teacher(0005,"社会牛",99,"爱国者导弹");
Teacher []TeaArray = new Teacher[3];
TeaArray[0] = new Teacher(1001,"王海涵",66,"经管");
TeaArray[1] = new Teacher(1005,"舒高瑾",33,"文法");
TeaArray[2] = new Teacher(1003,"社会牛",99,"爱国者导弹");
System.out.println(t1.toString());
System.out.println(t2.toString());
System.out.println(t3.toString());
System.out.println();
System.out.println("教师t1与教师t2是否相同?");
System.out.println(t1.equals(t2));
System.out.println("教师1与教师t3是否相同?");
System.out.println(t1.equals(t3));
System.out.print("\n");
System.out.println("按编号升序排列:");
Arrays.sort(TeaArray);
//System.out.println();
for(int i=0;i<TeaArray.length;i++){
System.out.print("编号为"+TeaArray[i].getNo()+"、姓名为"+TeaArray[i].getName()+"、年龄为"+TeaArray[i].getAge()+"的 "+TeaArray[i].getSeminary()+"学院老师");
System.out.println();
}
System.out.println();
//TeacherManagement a = new TeacherManagement();
System.out.println("年龄为66的教师的信息:");
TeacherManagement.search(TeaArray, 66);
}
}
package cn.net.sdkd;
public class Teacher implements Comparable<Object>{
private int no;
private String name;
private int age;
private String seminary;
public Teacher(int no, String name, int age, String seminary) {
this.no = no;
this.name = name;
this.age = age;
this.seminary = seminary;
}
public int getNo() {
return no;
}
public void setNo(int no) {
this.no = no;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getSeminary() {
return seminary;
}
public void setSeminary(String seminary) {
this.seminary = seminary;
}
public boolean equals(Teacher o)
{
if(this.no == o.no)
return true;
else
return false;
}
public String toString()
{
return "编号为"+getNo()+"姓名为"+getName()+"年龄为"+getAge()+"学院老师"+getSeminary();
}
public int compareTo(Object o) {
Teacher t = (Teacher) o;
if (no < t.no)
return -1;
else if (no > t.no)
return 1;
return 0;
}
}
package cn.sd;
import cn.net.sdkd.Teacher;
public class TeacherManagement {
public static void search(Teacher []t,int age)
{
int l = t.length;
int i;
for(i = 0;i < l;i++)
{
if(age == t[i].getAge())
{
System.out.println(t[i].toString());
break;
}
else if(i == l-1)
System.out.println("没有符合条件的教师");
}
}
public static void search(Teacher []t,String name)
{
int l = t.length;
int i;
for(i = 0;i < l;i++)
{
if(name == t[i].getName())
{
System.out.println(t[i].toString());
break;
}
else if(i == l-1)
System.out.println("没有符合条件的教师");
}
}
}