高分求道Java题目 很急
设计一个教师工作证类Teacher，数据域及方法自行定义，至少覆盖toString(),显示该对象的所有属性信息。设计一个测试类TestTeacher,创建数组Teach...
设计一个教师工作证类Teacher，数据域及方法自行定义，至少覆盖toString(),显示该对象的所有属性信息。设计一个测试类TestTeacher,创建数组Teachers存放教师工作证，有增加教师工作证，能查询指定教师证的信息，修改教师工作证功能，数组长度由键盘输入值决定。 O(∩_∩)O谢谢
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public class Teacher {
private String code;//教师编号
private String name;//教师姓名
private String job;//教师职务
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getJob() {
return job;
}
public void setJob(String job) {
this.job = job;
}
@Override
public String toString() {
return "编号："+code+";姓名："+name+";职务："+job;
}
}
=====================================================
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class TeacherTest {
public static void main(String[] args) {
TeacherTest tt = new TeacherTest();
Scanner scanner = new Scanner(System.in);
boolean enterOk = false;
int inpVal = 0;
System.out.println("====创建教师工作证====");
while(!enterOk){
try {
System.out.print("请输入要录入的教师个数");
String inpStr = scanner.next();
inpVal = Integer.parseInt(inpStr);
enterOk = inpVal>0;
} catch (Exception e) {
}
}
Teacher[] teachers = new Teacher[inpVal];
while(true){
System.out.println("============================");
System.out.print("操作教师工作证。\n" +
"1、添加教师工作证\n" +
"2、查询教师工作证\n" +
"3、查询所有教师的工作证\n" +
"4、修改教师工作证\n" +
"0、结束操作\n" +
"请输入操作编号：");
String inpStr = scanner.next();
while(!tt.checkInpVal(inpStr,new String[]{"1","2","3","4"})){
if("0".equals(inpStr)){
System.exit(0);
}
System.out.println("============================");
System.out.print("操作教师工作证。\n" +
"1、添加教师工作证\n" +
"2、查询教师工作证\n" +
"3、查询所有教师的工作证\n" +
"4、修改教师工作证\n" +
"0、结束操作\n" +
"请输入操作编号：");
inpStr = scanner.next();
}
if("0".equals(inpStr)){
System.exit(0);
}else{
tt.manageTeacher(teachers,inpStr,scanner);
}
}
}
public void manageTeacher(Teacher[] teachers,String manageIndex,Scanner scanner){
if("1".equals(manageIndex)){
Teacher t = new Teacher();
System.out.print("教师编号：");
t.setCode(scanner.next());
System.out.print("教师名称：");
t.setName(scanner.next());
System.out.print("教师职务：");
t.setJob(scanner.next());
addTeacher(teachers, t);
}else if("2".equals(manageIndex)){
System.out.print("请输入查询依据[code、name、job中任选其一]：");
String fieldName = scanner.next();
while(!checkInpFieldName(fieldName)){
fieldName = scanner.next();
}
System.out.print("请输入"+fieldName+"属性的值：");
List<Teacher> queryTeachers = queryTeacher(teachers, fieldName,scanner.next());
if(queryTeachers.size() == 0){
System.out.println("查询结果为空");
}else{
System.out.println("查询出的内容如下：");
for(int i=0;i<queryTeachers.size();i++){
System.out.println(queryTeachers.get(i));
}
}
}else if("3".equals(manageIndex)){
List<Teacher> queryTeachers = new ArrayList<Teacher>();
for(int i=0;i<teachers.length;i++){
if(teachers[i]!=null){
queryTeachers.add(teachers[i]);
}
}
if(queryTeachers.size() == 0){
System.out.println("查询结果为空");
}else{
System.out.println("查询出的内容如下：");
for(int i=0;i<queryTeachers.size();i++){
System.out.println(queryTeachers.get(i));
}
}
}else if("4".equals(manageIndex)){
System.out.print("请输入修改依据[code、name、job中任选其一]：");
String fieldName = scanner.next();
while(!checkInpFieldName(fieldName)){
System.out.print("请输入修改依据[code、name、job中任选其一]：");
fieldName = scanner.next();
}
System.out.print("请输入修改依据中"+fieldName+"属性的值：");
String fieldVal = scanner.next();
List<Teacher> queryTeacherList = queryTeacher(teachers, fieldName,fieldVal);
if(queryTeacherList.size() == 0){
System.out.println("找不到要修改的教师信息");
}else{
System.out.println("请输入修改教师信息：");
Teacher t = new Teacher();
System.out.print("教师编号：");
t.setCode(scanner.next());
System.out.print("教师名称：");
t.setName(scanner.next());
System.out.print("教师职务：");
t.setJob(scanner.next());
updateTeacher(teachers, fieldName,fieldVal,t);
System.out.println("修改成功");
}
}
}
public boolean addTeacher(Teacher[] teachers, Teacher t){
int addIndex = -1;
for(int i=0;i<teachers.length;i++){
if(teachers[i] == null){
addIndex = i;
break;
}
}
if(addIndex==-1){
System.out.println("教师添加数量达到上届不能再添加了");
return false;
}else{
teachers[addIndex] = t;
return true;
}
}
public boolean checkInpFieldName(String fieldName){
if(!"code".equals(fieldName) && !"name".equals(fieldName) && !"job".equals(fieldName)){
System.out.println("输入有误");
return false;
}else{
return true;
}
}
public boolean checkInpVal(String inp,String[] ableInp){
for(int i=0;i<ableInp.length;i++){
if(ableInp[i].equals(inp)){
return true;
}
}
return false;
}
public List<Teacher> queryTeacher(Teacher[] teachers, String fieldName,String fieldVal){
List<Teacher> queryTeachers = new ArrayList<Teacher>();
for(int i=0;i<teachers.length;i++){
if(teachers[i]!=null){
String compareFieldVal = "name".equals(fieldName)?teachers[i].getName():"job".equals(fieldName)?teachers[i].getJob():teachers[i].getCode();
if(fieldVal.equals(compareFieldVal)){
queryTeachers.add(teachers[i]);
}
}
}
return queryTeachers;
}
public void updateTeacher(Teacher[] teachers, String fieldName,String fieldVal,Teacher t){
for(int i=0;i<teachers.length;i++){
if(teachers[i]!=null){
String compareFieldVal = "name".equals(fieldName)?teachers[i].getName():"job".equals(fieldName)?teachers[i].getJob():teachers[i].getCode();
if(fieldVal.equals(compareFieldVal)){
teachers[i] = t;
}
}
}
}
}
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Try it.
Modify it if you needed.
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class Teacher {
private String name;
//get / set省略
public String toString(){
return "Teacher:"+name;
}
}
private String name;
//get / set省略
public String toString(){
return "Teacher:"+name;
}
}
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这样就完了？
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没包括测试类。。。。。
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