Question

I have a text file that this project needs to read from that has every possible combination of words but I am unsure how to do it. Also I'm pretty sure this program could use a program called "myArraylist" to sort through the text file but I am unsure how to implement this. I am unsure how to show the text file because it is massive, and I don't think it is possible to upload a text file to chegg. In this project you will develop a program which will find all the corresponding English words given any specific telephone number. Here are the detailed requirements:

Standard telephone keypads contain the digits zero through nine. The numbers two through nine each have 3~4 letters (case insensitive) associated with them. Many people find it difficult to memorize phone numbers, so they use the correspondence between digits and letters to develop seven-letter words that correspond to their phone numbers. For example, a person whose telephone number is 686-2377 might remember it as "NUMBERS."

a.In the Project2 class you will create a static void test() method.

b.The test method will first ask the user to type in through keyboard a 7-digit telephone number.

c.If the number typed in by the user is not 7 digits or the number contains some number of the digit ‘0’ or ‘1’, then your program reports an error and asks to type in another number.

d.If the number typed in by the user is a 7-digit telephone number made up of the digits ‘2’ through ‘9’, then your program will print out all the possible English words corresponding to the telephone number (and the total number of them), using the given English word library in the “EnglishWordList.txt”.

e.The “EnglishWordList.txt” file should be located in the folder where your project folder is located (i.e. this file and your project folder are sitting next to each other). This way when you zip your project folder to submit “EnglishWordList.txt” file will not be zipped into the zip file.

f.NOTE: When you open files for read or write you cannot use an absolute file path but have to use a relative file path.

Digit Letters:

2 A B C

3 D E F

4 G H I

5 J K L

6 M N O

7 P Q R S

8 T U V

9 W X Y Z

import java.util.Scanner;

public class Project2{
// all a, b, c parts are done here
public static void test() {
Scanner in = new Scanner(System.in);
int length=0, flag=0;
while(length!=7 || flag==0) {
int a = in.nextInt();
String num = String.valueOf(a);
System.out.println("You entered integer "+a);
length = num.length();
if(length!=7) {
System.out.println("Not Valid");
} else {
int zero = num.indexOf('0');
int one = num.indexOf('1');
System.out.println("one " + one);
System.out.println("zero " + zero);
  
if(zero+one==-2) {
flag=1;
System.out.println("Valid");
} else {
System.out.println("Not valid");
flag=0;
}
}
}
}

public static void main(String []args) {

test2();
  
// part d start here
Scanner sc = new Scanner(new File("EnglishWordList.txt"));
List dataList = new ArrayList();
while(sc.hasNextLine()) {
dataList.add(sc.nextLine());
}
}
}

MyArrayList

package collection;

public class MyArrayList implements Cloneable {
public Object[] obj;
public int maxsize = 1000, initialsize = 0;
  
public MyArrayList() {
obj = new Object[maxsize];
}
  
public void append(Object element) {
if (initialsize < maxsize)
obj[initialsize++] = element;
else
System.out.println("Full");
}

public void clear() {
obj = new Object[maxsize];
}

public boolean contains(Object element) {
for (int i = 0; i < initialsize; i++) {
if (obj[i] == element) {
return true;
}
}
return false;
}

public Object elementAt(int index) {
return obj[index];
}

public int indexOf(Object element) {
for (int i = 0; i < initialsize; i++) {
if (obj[i] == element)
return i;
}
return -1;
}

public void insertAt(int index, Object element) {
for (int i = initialsize; i > index; i--) {
obj[i] = obj[i - 1];
}
obj[index] = element;
initialsize++; //this is important
}
  
public boolean isEmpty() {
return initialsize == 0;
}

public void removed(int index) {
for (int i = index; i < initialsize - 1; i++) {
obj[i] = obj[i + 1];
}
initialsize--;
}

public void remove(Object element) {
for (int i = 0; i < initialsize; i++) {
if (obj[i] == element) {
removed(i);
break;
}
}
}

public void replace(int index, Object element) {
obj[index] = element;
}

public int size() {
return initialsize;
}

public boolean ensureCapacity(int minCapacity) {
return initialsize >= minCapacity;
}

public Object clone() throws CloneNotSupportedException {
return super.clone();
}

public void removeRange(int fromIndex, int toIndex) {
for (int i = fromIndex; i < toIndex; i++) {
removed(i);
}
}
  
public String toString() {
StringBuilder builder = new StringBuilder(" ");
for (int i = 0; i < initialsize; i++) {
builder.append(obj[i]);
}
return builder.toString();
}

public void reverse() {
int last = initialsize - 1;
for (int i = 0; i < (initialsize - 1) / 2; i++) {
Object temp = obj[i];
obj[i] = obj[last];
obj[last] = temp;
last--;
}
}

public void merge(MyArrayList arraylist2) {
for (int i = 0; i < arraylist2.size(); i++) {
obj[initialsize++] = arraylist2.elementAt(i);
}
}

public void print() {
for (int i = 0; i < initialsize; i++) {
if (i > 0 && (i % 10 == 0)) {
System.out.println();
}
System.out.print(obj[i] + " ");
}
}

public void removedAt(int i) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
}

Answer 1

import java.util.Scanner;

public class Project2{

// all a, b, c parts are done here

public static void test() {

Scanner in = new Scanner(System.in);

int length=0, flag=0;

while(length!=7 || flag==0) {

int a = in.nextInt();

String num = String.valueOf(a);

System.out.println("You entered integer "+a);

length = num.length();

if(length!=7) {

System.out.println("Not Valid");

} else {

int zero = num.indexOf('0');

int one = num.indexOf('1');

System.out.println("one " + one);

System.out.println("zero " + zero);

  

if(zero+one==-2) {

flag=1;

System.out.println("Valid");

} else {

System.out.println("Not valid");

flag=0;

}

}

}

}

public static void main(String []args) {

test2();

  

// part d start here

Scanner sc = new Scanner(new File("EnglishWordList.txt"));

List<String> dataList = new ArrayList<String>();

while(sc.hasNextLine()) {

dataList.add(sc.nextLine());

}

// taking out the data from the calss goes here

// I don't know how the data is present in the EnglishWordList.txt file

// That's why I am unable to help more, hope it will help

// Please hit upvote button, to keep me motivated

}

}