import java.io.FileReader; import java.io.IOException; import java.util.Arrays; public class ReadFileUsingFileReader { public static void main(String[] args) throws IOException { FileReader fr = new FileReader("C:\\Users\\I516379\\Desktop\\new.txt"); String str = ""; int ch = fr.read(); while (ch != -1){ System.out.print((char)ch); ch = fr.read(); if (ch!=-1) str = str+(char)ch; } String str1 = str.replaceAll("[^A-Za-z]",""); char arr[] = str1.toCharArray(); Arrays.sort(arr); System.out.println(); System.out.println(arr); } }