Create Lab5
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kxtzzl
GitHub
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f07b3b6617
commit
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Scanner;
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class Letter {
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private char value;
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public Letter(char value) {
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this.value = value;
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}
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public char getValue() {
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return value;
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}
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}
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class Word {
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private List<Letter> letters = new ArrayList<>();
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public Word(String input) {
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for (char c : input.toCharArray()) {
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letters.add(new Letter(c));
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}
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}
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public List<Letter> getLetters() {
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return letters;
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}
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public String toString() {
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StringBuilder sb = new StringBuilder();
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for (Letter letter : letters) {
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sb.append(letter.getValue());
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}
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return sb.toString();
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}
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}
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class PunctuationMark {
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private char value;
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public PunctuationMark(char value) {
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this.value = value;
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}
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public char getValue() {
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return value;
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}
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}
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class Sentence {
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private List<Object> elements = new ArrayList<>();
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public Sentence(String input) {
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StringBuilder sb = new StringBuilder();
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for (char c : input.toCharArray()) {
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if (Character.isLetterOrDigit(c)) {
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sb.append(c);
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} else {
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if (sb.length() > 0) {
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elements.add(new Word(sb.toString()));
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sb.setLength(0);
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}
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elements.add(new PunctuationMark(c));
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}
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}
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if (sb.length() > 0) {
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elements.add(new Word(sb.toString()));
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}
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}
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public List<Object> getElements() {
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return elements;
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}
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public String toString() {
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StringBuilder sb = new StringBuilder();
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for (Object element : elements) {
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if (element instanceof Word) {
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sb.append(((Word) element).toString());
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} else {
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sb.append(((PunctuationMark) element).getValue());
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}
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}
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return sb.toString();
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}
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}
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class Text {
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private List<Sentence> sentences = new ArrayList<>();
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public Text(String input) {
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StringBuilder sb = new StringBuilder();
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for (char c : input.toCharArray()) {
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if (c == '.' || c == '?' || c == '!' || c == ',') {
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sb.append(c);
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sentences.add(new Sentence(sb.toString()));
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sb.setLength(0);
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} else {
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sb.append(c);
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}
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}
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if (sb.length() > 0) {
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sentences.add(new Sentence(sb.toString()));
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}
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}
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public List<Sentence> getSentences() {
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return sentences;
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}
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public String toString() {
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StringBuilder sb = new StringBuilder();
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for (Sentence sentence : sentences) {
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sb.append(sentence.toString());
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}
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return sb.toString();
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}
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}
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public class Lab5 {
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public static void main(String[] args) {
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int C17 = 2430 % 17;
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System.out.println("\n---------------------------------------------------------------------------------------------------------------------");
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System.out.println(" C17 = " + C17 + ", So, the task is: delete all previous occurrences of the last letter of each word of the specified text.");
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System.out.println("---------------------------------------------------------------------------------------------------------------------");
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Scanner scanner = new Scanner(System.in);
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boolean isDone = false;
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while (!isDone) {
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System.out.print("\nEnter a string or type 'q' to quit: ");
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String input = scanner.nextLine().trim();
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if (input.equals("q")) {
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System.out.print("\n The work is completed.");
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isDone = true;
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} else if (input.isEmpty()) {
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System.out.println("Error: Input string is empty. Please enter a non-empty string.");
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} else {
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try {
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StringBuilder sb = new StringBuilder(input);
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String[] words = sb.toString().split("\\s+");
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for (int i = 0; i < words.length; i++) {
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String word = words[i];
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char lastChar = word.charAt(word.length() - 1);
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if (!Character.isLetterOrDigit(lastChar)) {
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int lastLetterIndex = -1;
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for (int j = word.length() - 2; j >= 0; j--) {
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if (Character.isLetter(word.charAt(j))) {
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lastLetterIndex = j;
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break;
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}
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}
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if (lastLetterIndex != -1) {
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char lastLetter = word.charAt(lastLetterIndex);
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String newWord = "";
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for (int j = 0; j < word.length() - 1; j++) {
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if (!Character.isLetterOrDigit(word.charAt(j)) || word.charAt(j) != lastLetter) {
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newWord += word.charAt(j);
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}
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}
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newWord += lastChar;
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words[i] = newWord;
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}
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} else {
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char lastLetter = lastChar;
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String newWord = "";
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for (int j = 0; j < word.length() - 1; j++) {
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if (!Character.isLetterOrDigit(word.charAt(j)) || word.charAt(j) != lastLetter) {
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newWord += word.charAt(j);
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}
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}
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newWord += lastLetter;
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words[i] = newWord;
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}
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}
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System.out.print("\n Final string: ");
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System.out.println(String.join(" ", words));
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} catch (Exception e) {
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System.out.println("An error occurred: " + e.getMessage());
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}
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}
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}
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}
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}
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