addstudentnode.java

学生信息管理系统

/*
 * AddStudentNode.java
 *
 * Created on 2008年4月2日, 下午9:18
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package finaltest;

/**
 *
 * @author Administrator
 */
public class AddStudentNode {
    StudentNode mynode;
    static AddStudentNode addmynode;
    /** Creates a new instance of AddStudentNode */
    public AddStudentNode(int row) {
        mynode = new StudentNode();
        mynode.student = new Student();
        StudentNode nodetemp = StudentNode.head;
        if(StudentNode.head==null){
            StudentNode.head = mynode;
            StudentNode.rear = mynode;
            StudentNode.itemnow++;
            //System.out.println("null");
        }else{
            for(int i =0;i<row &&nodetemp!=null;i++)
                nodetemp =nodetemp.next;
            if(row==0){
                mynode.next =nodetemp;
                nodetemp.prev =mynode;
                StudentNode.head =mynode;  
                StudentNode.itemnow++;
                //System.out.println("111");
            }else if((row==1 && StudentNode.head==StudentNode.rear)||nodetemp==null){
                StudentNode.rear.next =mynode;
                mynode.prev =StudentNode.rear;
                StudentNode.rear =mynode;
                StudentNode.itemnow++;
                //System.out.println("22");
            }else{
                mynode.next =nodetemp;
                nodetemp.prev.next =mynode;
                mynode.prev =nodetemp.prev;
                nodetemp.prev =mynode;
                StudentNode.itemnow++;
                //System.out.println("hao");
            }
        } 
        //StudentNode.refreshTable(jTable1);
    }
    
    public AddStudentNode(){
        mynode = new StudentNode();
        mynode.student = new Student();
        if(StudentNode.head==null){
            StudentNode.head = mynode;
            StudentNode.rear = mynode;
        }else {
            StudentNode.rear.next =mynode;
            mynode.prev =StudentNode.rear;
            StudentNode.rear =mynode;
        }
    }
    
    public boolean nodeSetId(String id){
        int len=id.length();
        if(len<1||len>9){                                 //最大只有十位。
            return false; 
            }
        for(int i=0;i<len;i++){
            char ch=id.charAt(i);            //取出第i个字符检测
            if(ch<'0'||ch>'9'){
                return false;
            } 
        }   
        mynode.student.setId(id); 
        return true;
    }
    
    public boolean nodeSetName(String name){
        int len=name.length();
        if(len>20||len<1){                                //限制位20位
            return false;
        }
        for(int i=0;i<len;i++){
            char ch=name.charAt(i);
            if( !( (ch>='A'&&ch<='Z')||(ch>='a'&&ch<='z') ) ){
                return false;
            }//if
        }//for
        mynode.student.setName(name);
        return true;
    }
    
    public boolean nodeSetSex(String sex){
        if(sex!=null){
            mynode.student.setSex(sex);
            return true;
        }else
            return false;
    }
    
    public boolean nodeSetAge(String age){
        int len=age.length();
        if(len<1||len>9){                                 //int型最大只有十位。
            return false; 
        }
        for(int i=0;i<len;i++){
            char ch=age.charAt(i);            //取出第i个字符检测
            if(ch<'0'||ch>'9'){
                return false;
            } 
        }
        int i =Integer.valueOf(age);
        if(i<1||i>100)return false;
        mynode.student.setAge(i);
        return true;
    }
    
    public boolean nodeSetMajor(String major){
        if(major!=null){
           mynode.student.setMajor(major);
           return true;
        }else 
            return false;
    }
    
    public boolean nodeSetMyclass(String myclass){
        int len=myclass.length();
        if(len!=4){                                 //最大只有十位。
            return false; 
            }
        for(int i=0;i<len;i++){
            char ch=myclass.charAt(i);            //取出第i个字符检测
            if(ch<'0'||ch>'9'){
                return false;
            } 
        }   
        mynode.student.setMyclass(myclass);
        return true;
    }
}