Hi,
I am new at java.
I have made the search class of an address book program
with the functions of add, modify and delete.
Please have a look into the code.
Please also explain the function of
e.printstacktrace();
import java.io.*;
import java.util.*;
class search
{
private String str,sval;
private String arr[]=new String[8];
private int ch;
private int pos,ctr;
clear c1=new clear();
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
public void calc()throws IOException
{
DataInputStream in=DataInputStream(new FileInputStream("adbk.txt"));
System.out.println("How would you like to search?");
System.out.println("1)by fn");
System.out.println("2)by ln");
System.out.println("3)by area code");
System.out.println("4)by city");
System.out.println("5)by state");
System.out.println("enter choice:");
ch=Integer.parseInt(br.readLine());
switch(ch)
{
case 1:
{
System.out.println("enter fn");
pos=0;
break;
}
case 2:
{
System.out.println("enter ln");
pos=2;
break;
}
case 3:
{
System.out.println("enter arcd");
pos=3;
break;
}
case 4:
{
System.out.println("enter city");
pos=5;
break;
}
case 5:
{
System.out.println("enter state");
pos=6;
break;
}
default:
{
System.out.println("error");
break;
}
}
sval=br.readLine();
//clr here
while((str=in.readLine())!=null)
{
StringTokenizer st=new StringTokenizer(str,"_");
for(int i=0;i<=7;i++)
{
arr[i]=st.nextToken();
}
if(sval==arr[pos])
{
ctr++;
for(int i=0;i<=7;i++)
{
System.out.print(arr[i]+" ");
}
System.out.println();
}
}
System.out.println("Total hits="+ctr);
}
public static void main(String args[])
{
search s=new search();
try
{
s.calc();
}
catch(IOException e)
{
System.out.println("error");
}
}
}