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InputStream 'is' is giving NPE

I am having a null pointer exception while reading a file,Below is the code:

private static final String TASK_CUBES_PIECE_DEFINITIONS_PATH = "/task/src/cubes/definitions/";
InputStream is =...

if one enters a phone number it should give the corresponding words from dictionary

This is my code,Dictionary is a txt document that contain:
an
blau
Bo"
Boot
bo"s
da
Fee
fern
Fest

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.LineNumberReader;
import java.util.ArrayList;
import java.util.Scanner;
import...

Please help me out

it returns phWordsFromDict = "" i.e. an empty String

public static String getDictPhoneWord (String prefix) {

System.out.println(" :: Inside getDictPhoneWord :: prefix = "+prefix);
String current_word = "";
String phWordsFromDict = "";...

HI,
I have to write a piece of code in which i have String that can contain a word from a dictionary, that String is named 'prefix' and the dictionary word is current_word,How can i traverse through...

According to my understanding i have to take input this image and encode in ASCII Format i.e o format that i dont know how to do it.
Then match each one pieces to the other to see if it fits well ...

Ok the input is the image having puzzle pieces of different colors.
And the ouput is supposed to be a cube. for example blue color pieces joined together to make a blue cube and same for all the...

for your first post i ve provided you the complete assignment..I dont know how to work on it have not written any algorithm yet

944

attach is the image
and the task is ::


Cubes Puzzle Task

Create a computer program that solves the given cubes puzzles and
prints the solution(s) in ASCII...

I have a .png image cubes puzzles and have to print the solution(s) in ASCII format into a file in unfolded format.I do not need to create a "reader" for the input pieces just encode the input pieces...

Hey everyone,I am an intermediate level java developer.. and i here need experts help for grooming up myself and to help others.