TY_BCS_A_JAVA_SLIP15

SLIP 15:

Create a hash table containing student name and percentage. Display the details of hash table. Also search for the specific student and display percentage of that student.

/* Slip no : 15_2*/

import java.io.*;

import java.util.*;

class Slip15_2

{

            public static void main(String args[]) throws Exception

            {

                        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

                                    Hashtable ht=new Hashtable();

                                    float per;

                                    String name=null;

                        System.out.println("\n Enter no of Students : ");

                        int n=Integer.parseInt(br.readLine());

                        for(int i=0;i<n;i++)

                        {

                                    System.out.print("Enter Student name :");

                                                name=br.readLine();

                                                System.out.print("Enter Student's per :");

                                                per = Float.parseFloat(br.readLine());

                                                ht.put(name,per);

                        }

                        System.out.println("Hash table = "+ht);

                        Enumeration k = ht.keys();

                        Enumeration v= ht.elements();

                                    System.out.println("ID\tName");

                        while(k.hasMoreElements())

                        {

                                    System.out.println(k.nextElement()+"\t"+v.nextElement());

                        }

                        System.out.println("Enter name to be search : ");

                        String snm=br.readLine();

                        k = ht.keys();

                        v= ht.elements();

                        int cnt=0;

                                    while(k.hasMoreElements())

                                    {

                                                name = (String)k.nextElement();

                                                if(snm.equals(name))

                                                {           cnt++; 

                                                            System.out.println("Percentage = "+v.nextElement());

                                                }

                                    }

                        if(cnt==0)

                                    System.out.println("Student not found");                   

            }

}