about linked list

about linked list

hey can u help me soon ?? i want to add student,mark,and id from keyboard i want to calculte the number of students pass if his mark above 60 and average ,,,also i want to search about someone student thats in linked list

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March 22, 2012 at 5:33 PM

import java.util.*;

class StudentData{
    int id;
    String name;
    int marks;

    StudentData(int id,String name,int marks){
        this.id=id;
        this.name=name;
        this.marks=marks;
    }
    public int getId(){
        return id;
    }
    public String getName(){
        return name;
    }
    public int getMarks(){
        return marks;
    }

    public static void main(String[] args){
        int count=0;
        LinkedList<StudentData> list=new LinkedList<StudentData>();
        Scanner input=new Scanner(System.in);

        for(int i=0;i<5;i++){
            System.out.print("Enter ID: ");
            int id=input.nextInt();
            System.out.print("Enter Name: ");
            String name=input.next();
            System.out.print("Enter Marks: ");
            int m=input.nextInt();

        list.add(new StudentData(id,name,m));
        }

       for(StudentData data:list){
            if(data.getMarks()>=60){
                count++;
            }
       }
       System.out.println("Number of students obtained 60 or above: "+count);

        System.out.print("Enter id to display record: ");
        int rec=input.nextInt();
        for(StudentData data:list){
            if(data.getId()==rec){
            System.out.println(data.getId()+"\t"+data.getName()+"\t"+data.getMarks());
            }
        }
    }
}









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