java里录取信息的代码 java录入数据
Java编程题 查询高考录取分数线？
import java.util.Scanner;
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public class App
{
public static void main(String[] args)
{
final String[][] strstrs=
{
{"民办本科","350 分"},{"艺术类本科","290 分"},
{"体育类本科","280 分"},{"二本","445 分"},
{"一本","555 分"}
};
final String msg="请输入要查询的录取分数线（比如民办本科、"+
"艺术类本科、体育类本科、二本、一本）：";
String input;
boolean invalidate=true;
Scanner sc=new Scanner(System.in);
System.out.print(msg);
input=sc.nextLine().trim();
for(String[] strs : strstrs)
{
if(strs[0].equals(input))
{
System.out.printf("%s录取分数线：%s%n",input,strs[1]);
invalidate=false;
break;
}
}
if(invalidate)
System.out.println("没有相关查询的录取分数线");
sc.close();
}
}
用java编写一个数据库程序，我在编辑录入学生成绩时，可以录取，但是出现异常:Invalid handle这个问题
可能是因为你第一录入成功后你就把连接给关闭了所造成的吧！
java 录取学生
public class School {
private String name;
private double line;
public School(){};
public School(String name,double line) {
super();
this.name=name;
this.line = line;
}
public double getLine() {
return line;
}
public void setLine(double line) {
this.line = line;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
public class Student {
private String id;
private String name;
private double total;
private double sports;
public Student(){
}
public Student(String id, String name, double total, double sports) {
super();
this.id = id;
this.name = name;
this.total = total;
this.sports = sports;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public double getTotal() {
return total;
}
public void setTotal(double total) {
this.total = total;
}
public double getSports() {
return sports;
}
public void setSports(double sports) {
this.sports = sports;
}
}
public class Pass {
public void status(School s,Student stu){
if(stu.getTotal()=s.getLine()||(stu.getSports()=96||stu.getTotal()=300)){
System.out.println("学号为："+stu.getId()+" "+"姓名为："+stu.getName()+"的同学被"+s.getName()+"录取，该学校的录取分数线为："+s.getLine());
}else{
System.out.println("学号为："+stu.getId()+" "+"姓名为："+stu.getName()+"的同学没有被"+s.getName()+"录取，该学校的录取分数线为："+s.getLine());
}
}
public static void main(String[] args){
School school1=new School("清华大学",680);
School school2=new School("北京大学",660);
Student stu1=new Student("2012121201","小红",690,80);
Student stu2=new Student("2012121201","小明",650,80);
Student stu3=new Student("2012121201","张三",670,80);
Student stu4=new Student("2012121201","李四",640,80);
Pass p=new Pass();
p.status(school1, stu1);
p.status(school1, stu2);
p.status(school2, stu3);
p.status(school2, stu4);
}
}
运行结果为：
学号为：2012121201 姓名为：小红的同学被清华大学录取，该学校的录取分数线为：680.0
学号为：2012121201 姓名为：小明的同学被清华大学录取，该学校的录取分数线为：680.0
学号为：2012121201 姓名为：张三的同学被北京大学录取，该学校的录取分数线为：660.0
学号为：2012121201 姓名为：李四的同学被北京大学录取，该学校的录取分数线为：660.0
java的问题
import java.util.ArrayList;
import java.util.List;
class School {
private double line;
public double getLine() {
return line;
}
public void setLine(double line) {
this.line = line;
}
}
class Student{
public Student() {
}
public Student(String name, String id, double total, double sports) {
this.name = name;
this.id = id;
this.total = total;
this.sports = sports;
}
private String name;
private String id;
private double total;
private double sports;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public double getTotal() {
return total;
}
public void setTotal(double total) {
this.total = total;
}
public double getSports() {
return sports;
}
public void setSports(double sports) {
this.sports = sports;
}
@Override
public String toString() {
return "姓名："+name+"编号："+id+"综合成绩："+total+"体育成绩："+sports;
}
}
class Pass{
public boolean isPass(School school,Student student){
if (student.getTotal()=school.getLine()||(student.getSports()96student.getTotal()300)) {
return true;
}else {
return false;
}
}
}
public class Test {
public static void main(String[] args) {
Student student1=new Student("张三","001",400,95);
Student student2=new Student("李四","002",450,98);
Student student3=new Student("王五","003",200,98);
ListStudent students=new ArrayListStudent();
students.add(student1);
students.add(student2);
students.add(student3);
Pass pass=new Pass();
School school=new School();
school.setLine(399);
for (Student student : students) {
if (pass.isPass(school, student)) {
System.out.println("被录取"+student);
}
}
}
}
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