src_Dictionary.java

import java.util.ArrayList;

public class Dictionary{
    public static ArrayList<Word> Dictionary = new ArrayList<>() ;

}

src_DictionaryCommandline.java

import java.io.FileNotFoundException;

public class DictionaryCommandline extends DictionaryManagement {
    public void showAllWords(){
        System.out.printf("%-15s %-20s %-15s%n", "No", "English", "Vietnamese");
        for(int i=0;i< Dictionary.size();i++){
            System.out.printf("%-15d %-20s %-15s%n",i+1,Dictionary.get(i).word_target , Dictionary.get(i).word_explain);
        }
    }
    public void dictionaryBasic(){
//        insertFromCommandline();
        try {
            insertFromFile();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        showAllWords();
    }

    public static void main(String[] args) {
        DictionaryCommandline myDictionary = new DictionaryCommandline();
        myDictionary.dictionaryBasic();
    }
}

src_DictionaryManagement.java

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class DictionaryManagement extends Dictionary {
    public void insertFromCommandline(){
        Scanner scanner = new Scanner(System.in) ;
        int numberOfWords = scanner.nextInt() ;
        scanner.nextLine() ;
        for(int i=0;i<numberOfWords;i++) {
            String wordTarget = scanner.nextLine();
            String wordMean = scanner.nextLine();
            this.Dictionary.add(new Word(wordTarget,wordMean)) ;
        }
    }
    public void insertFromFile() throws FileNotFoundException {
        File myfile = new File("C:\\Users\\Admin\\IdeaProjects\\Dictionary\\Dictionary.txt") ;
        Scanner scanner = new Scanner(myfile) ;
        while (scanner.hasNext()){
            String[] data = scanner.nextLine().split("\\s");
            Word word = new Word();
            word.word_target = data[0] ;
            for(int i=1;i<data.length;i++) word.word_explain += data[i]+" " ;
            Dictionary.add(word) ;
        }
    }
}

src_Word.java

public class Word {
    public String word_target ;
    public String word_explain ;
    public Word(String word_target, String word_explain){
        this.word_target = word_target ;
        this.word_explain = word_explain ;
    }
    public Word(){
        this.word_target = "";
        this.word_explain ="";

    }
}