studentmanage.java

学生管理系统,界面布局的示例。主要包含四个类。

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package studentmanagement;

import java.util.ArrayList;

/**
 *
 * @author DJ尐舞
 */
public class StudentManage {
    public class Student {

        String name;
        String no;
        String info;

        public Student(String name, String no,String info) {
            this.name = name;
            this.no = no;
            this.info=info;
        }
    }
    private ArrayList stu = new ArrayList();

    public void add(String name, String no,String infor) {
        stu.add(new Student(name, no,infor));
    }

    public String[] getInfo(String no) {
        String[] s=new String[3];
        for (int i = 0; i < stu.size(); i++) {
            if (((Student) (stu.get(i))).no.equals(no)) {
                s[0]=no;
                s[1]=((Student) (stu.get(i))).name;
                s[2]= ((Student) (stu.get(i))).info;
                return s;
            }
        }
        return null;
    }
    public String[] showNo(){
        String[] s=new String[stu.size()];
        for(int i=0;i<stu.size();i++){
            s[i]=((Student)stu.get(i)).no;
        }
        return s;
    }
}