My program not reading from the file txt and there is a problem when it is displ
ID: 3736214 • Letter: M
Question
My program not reading from the file txt and there is a problem when it is display the output is not give me the ranking for the name for both gender: for example if we shoice from 2001 and chose the gender m it is not reading my input the right way and it is not reading from my files. And its not give the user his input is not right or something like that:
could you please check my code:
/**
* @author sameer
* to prompt the detailsfrom the user
* year, gender and name and these paramters are passed to the
* search file method and rank is returned from that method
* once the rank is returned, the user is asked again whether
* to search for any other baby names or not. If yes again details
* will be requested or else the user input will be blocked using
* System.exit(0)
*/
import java.io.BufferedReader;
import java.io.FileReader;
import java.util.*;
public class babyNamePopularityRanking {
Scanner input; // scanner object to get the input from the user
public void showPrompt(){
input = new Scanner(System.in);
System.out.print(" Enter the year : ");
String year = input.next();
System.out.print(" Enter the gender : ");
String gender = input.next();
System.out.print(" Enter the name : ");
String name = input.next();
String rank = searchFile(year,gender,name);
String sex = gender.equalsIgnoreCase("M")?"Boy":"Girl";
System.out.println(sex + " name " + name + " is ranked #" + rank + " in year " + year);
System.out.print(" Enter another inquiry? ");
String anotherEnquiry = input.next();
if(anotherEnquiry.equalsIgnoreCase("Y")) {
showPrompt();
} else{
System.exit(0);
}
}
/**
* @param year - year need to be searched
* param gender - gender of the baby
* param name - name of the baby
* return the rank of the name
* here based on gender the rank will be displayed
* if the gender name is M the split position with 1 is compared
* if the gender name is F the split position with 3 is compared
*/
public String searchFile(String year, String gender, String name){
String rank = null; // to return the rank of the name
BufferedReader reader = null;
String line = "";
try{
reader = new BufferedReader(new FileReader("babynameranking" + year.trim() + "txt"));
// in this while loop based on the gender type
// the splitted characters will be compared
while ((line = reader.readLine()) != null) {
String data = line;
String split[] = data.split("");
if(gender.equalsIgnoreCase("M")){
if(name.equalsIgnoreCase(split[1])){
rank = split[0];
}
}else{
if(name.equalsIgnoreCase(split[3])){
rank = split[0];
}
}
}
reader.close();
}catch (Exception e) {
}
return rank;
}
/**
* @param args
* here the program is started
*/
public static void main(String[] args){
babyNamePopularityRanking babyNames = new babyNamePopularityRanking();
babyNames.showPrompt();
}
}
Explanation / Answer
import java.io.*;
import java.util.*;
public class babyNamePopularityRanking {
BufferedReader input; // BufferedReader object to get the input from the user
String gender,year,name;
public void showPrompt()
{
try{
input=new BufferedReader(new InputStreamReader(System.in));
System.out.print(" Enter the year : ");
year =input.readLine();
System.out.print(" Enter the gender : ");
gender = input.next();
System.out.print(" Enter the name : ");
name = input.next();
String rank = searchFile(year,gender,name);
String sex = gender.equalsIgnoreCase("M")?"Boy":"Girl";
System.out.println(sex + " name " + name + " is ranked #" + rank + " in year " + year);
System.out.print(" Enter another inquiry? ");
String anotherEnquiry = input.next();
if(anotherEnquiry.equalsIgnoreCase("Y"))
showPrompt();
else
System.exit(0);
}
catch(Exception e){}
}
public String searchFile(String year, String gender, String name){
String rank = null; // to return the rank of the name
BufferedReader reader = null;
String line = "";
try{
reader = new BufferedReader(new FileReader("babynameranking" + year.trim() + ".txt"));
while ((line = reader.readLine()) != null)
{
String data = line;
String split[] = data.split("");
if(gender.equalsIgnoreCase("M"))
{
if(name.equalsIgnoreCase(split[1]))
rank = split[0];
}
else{
if(name.equalsIgnoreCase(split[3]))
rank = split[0];
}
}
reader.close();
}catch (Exception e) {
}
return rank;
}
public static void main(String[] args){
babyNamePopularityRanking babyNames = new babyNamePopularityRanking();
babyNames.showPrompt();
}
}
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