Here is what I already have started Answers to Self-Test Questions 6 Write a pro

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Here is what I already have started

Answers to Self-Test Questions 6 Write a program that reads a Java program from a text file and performs the following tasks a. Display a list in alphabetical order of the unique Java keywords used in the program h. Repeat Part a, but add the number of times each keyword occurs in the program. e. Repeat either Part a or Part b, but add the line number of each line that contains the keyword OWERS TO SELE-Test QUESTIONS c static «T int inArray(TC) anArray, T anEntry) boolean found- false: let resudt l

Explanation / Answer

import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Scanner;

class KeywordDemo
{
String keywordsFound[];
int kcount[];
String words[];
int lineNumber[];
int numOfWords;
int numOfKeywords;
public KeywordDemo()
{
keywordsFound= new String[100];
kcount=new int[100];
for(int i=0;i<100;i++)
kcount[i]=0;
words=new String[500];
lineNumber=new int[500];
numOfWords=0;
numOfKeywords=0;
}
public void fileRead(String userFile) throws FileNotFoundException
{
File file=new File(userFile);
Scanner readFile=new Scanner(file);
while(readFile.hasNextLine())
{
words[numOfWords]=readFile.next();
numOfWords++;
}
  
}
public boolean found(String word) {
boolean flag=false;
if(numOfKeywords>0)
{
for(int j=0;j<numOfKeywords;j++)
{
if(word.equals(keywordsFound[j]))
{
flag=true;
break;
}
}
}
return flag;
}
  
public void sortList() {
String temp;
int t;

for (int i = 0; i < numOfKeywords; i++)
{
for (int j = i + 1; j < numOfKeywords; j++)
{
if (keywordsFound[i].compareTo(keywordsFound[j])>0)
{
temp = keywordsFound[i];
keywordsFound[i] = keywordsFound[j];
keywordsFound[j] = temp;
System.out.println("ok");
t=kcount[i];
kcount[i]=kcount[j];
kcount[j]=t;
}
}
}
}
public void displayKeywordList()
{
for(int j=0;j<numOfKeywords;j++)
{
System.out.println(keywordsFound[j]);
}
}
public void displayListWithOccurence()
{
for(int j=0;j<numOfKeywords;j++)
{
System.out.println(keywordsFound[j]+" "+kcount[j]);
}
}
public void findKeyWords(ArrayList<String> keywords)
{
for(int i=0;i<numOfWords;i++)
{
for(int j=0;j<keywords.size();j++)
{
if(words[i].equals(keywords.get(j)))
{
if(!found(words[i]))
{
keywordsFound[numOfKeywords]=words[i];
kcount[numOfKeywords]=1;
numOfKeywords+=1;
}
else
{
kcount[numOfKeywords]+=1;
numOfKeywords+=1;
}
}
}
}
}
}

class ReadIt {
public static void main(String[] args) throws FileNotFoundException {
KeywordDemo K=new KeywordDemo();
ArrayList<String> keywords= new ArrayList<String>();
String[] OtherList= new String[]{"abstract","assert","boolean","break",
"byte","default","do","double","else","extends", "false","final","finally",
"float","for","goto","if","implements","import","instanceof","int", "interface",
"long","native","new", "null","package","private","protected","public","return",
"short","static","strictfp","super","switch","synchronized","this","throw",
"throws","transient","true","try","void","volatile","while"};
keywords.addAll(Arrays.asList(OtherList));
System.out.println("Enter the filename");
Scanner keyboard=new Scanner(System.in);
String userFile=keyboard.nextLine();
K.fileRead(userFile);
K.findKeyWords(keywords);
K.sortList();
System.out.println(" List of unique keywords found in "+userFile+" in Alphabetical order:");
K.displayKeywordList();
System.out.println(" List of unique keywords in Alphabetical order with number of Occurences");
K.displayListWithOccurence();
// System.out.println(" List of unique keywords in Alphabetical order with line number");
}
}

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