为什么不执行语句

Question

This program ask a user to enter a filename.the program searches if the file exsist.if not exsist they have the option to create the file or enter another filename to search. But it seems that one statement is not being executed.

import java.io.PrintStream;
import java.util.Scanner;
import java.io.File;
import java.io.IOException;

class usingexist
{
    static Scanner in=new Scanner(System.in);
    static String select="";
    static String search="";
    static int x;

    public static void main(String[] args)throws IOException
    {
        x=1;

        while(x==1)
       {
            System.out.println("Please the file name you want to search");
            search=in.nextLine();

            File f=new File(search);


            if(f.exists()) // check if file exists
            {
                System.out.println("File Found.");
                x=2;
            }
            else if(!f.exists())  // creates file if dont exsist
            {
                System.out.println("File Not Found.");
                System.out.println("Do you want to create the File ? (Y/N)");
                select=in.nextLine();

                if(select.equals('Y'))
                {
                 f.createNewFile();            // this statement is not beig executed
                 System.out.println("created succesfully");
                 x=2;
                }

            }
            else if (select.equals('N')) // prompts the user to enter another file name
            {
                x=1;
            }
      }

    }
}

Answer 1

if(select.equals("Y"))

put double quotes around the Y . You are comparing two Strings here, not characters.

Answer 2

And you should change some of your code logic since your if statements were nested incorrectly. YOu should maybe take a look at the break keyword as well.

if(f.exists()) // check if file exists
{
    System.out.println("File Found.");
    x=2;
}
else // creates file if dont exsist
{
    System.out.println("File Not Found.");
    System.out.println("Do you want to create the File ? (Y/N)");
    select=in.nextLine();

    if(select.equals("Y"))
    {
        f.createNewFile();            // this statement is not beig executed
        System.out.println("created succesfully");
        x=2;
    }
    else if (select.equals("N")) // prompts the user to enter another file name
    {
        x=1;
    }
}