java - 使用 ArrayList 时出现明显错误，但遵循给定的语法(Stanford CS106A HangmanLexicon)

Question

我即将完成 Hangman 作业(独立完成)，最后一个任务是从 .txt 文件创建 ArrayList。我遵循给定的语法，但编译器不会接受两个错误:

/*
 * File: HangmanLexicon.java
 * -------------------------
 * This file contains a stub implementation of the HangmanLexicon
 * class that you will reimplement for Part III of the assignment.
 */

import acm.util.*;
import java.io.*;
import java.util.*;


public class HangmanLexicon {

	//random number for getWord
	private RandomGenerator rgen = RandomGenerator.getInstance();
		
	//creates new arraylist
	ArrayList<String> wordList = new ArrayList<String>();

	
	//opens the text file
	//Reads lines from the file into an ArrayList

	try {
		BufferedReader rd = new BufferedReader(new FileReader("HangmanLexicon.txt"));	
		while(rd.readLine() != null) {
		String line = rd.readLine();
		wordList.add(line);
		}	
	} catch (IOException ex) {
		System.out.println("bad/no file");
	}
	
	
// Returns the number of words in the lexicon
	public int getWordCount() {
		int WordCount = wordList.size();
		return WordCount;
	}
	
/** Returns the word at the specified index. */

	public String getWord(int index) {
		int lexnum = rgen.nextInt(0, index);
		String word = wordList.get(lexnum);
		return word;
	};

}

错误位于第 19 行和第 37 行:

19) Arraylist....错误:“{”应该在“;”之后

37) public int getWordCount() { .... 错误:“;”预计

这些问题有哪些修复方法？

Answer 1

try-catch block 需要位于方法或静态 block 内。