Hi Friend,

Try this:

import java.util.*;

class  Information{
    int no;
    String name;
    String address;
    int contactNo;
    Information(int no,String name,String address,int contactNo){
        this.no=no;
        this.name=name;
        this.address=address;
        this.contactNo=contactNo;
    }
    public int getNo(){
        return no;
    }
    public String getName(){
        return name;
    }
    public String getAddress(){
        return address;
    }
    public int getContactNo(){
        return contactNo;
    }
   }
    public class EmployeeInformation{
    public static void main(String[] args){
        ArrayList<Information> list=new ArrayList<Information>();
        Scanner input=new Scanner(System.in);
        for(int i=0;i<4;i++){
            System.out.println();
            System.out.println("-----Employee "+(i+1)+"-----");
            System.out.println("Enter empno: ");
            int no=input.nextInt();
            System.out.println("Enter name: ");
            String name=input.next();
            System.out.println("Enter address: ");
            String address=input.next();
            System.out.println("Enter contact no: ");
            int contactno=input.nextInt();
            list.add(new Information(no,name,address,contactno));
        }
System.out.println(" ");
System.out.print("Enter Employee Id: ");
int id = input.nextInt();
for(Information s : list){
if(id == s.getNo())
{
System.out.print(s.getName()+" " +s.getAddress()+" "+s.getContactNo());
}
}
}
}

Thanks