Question

我收到错误：

错误：（65,3）java：非法启动表达式

参考这一行：

public boolean equals(WordList wordList)

我认为这是由字符串数组WordList[]的范围引起的。但是，似乎这应该是可以接受的，因为我在构造函数中调用变量的实例。

我尝试将WordList[]构造更改为public equals(WordList wordList)，boolean equals(WordList wordList)和其他组合，但这些组合都没有更改错误消息。

代码：

public class WordList
{
String[] words;
public int count;

//constructor
public WordList()
{
//create a size two array of strings and assign it to words instance variable
words = new String[2];

count = 0;
}

public int addWord(String word)
{
if(findWord(word) == -1) //word not in list
{
  return count;
}
if(words.length == count)
{
  String[] temp = new String[words.length * 2];
  for(int n = 0; n < words.length; n++)
  {
    temp[i] = words[i];
  }
  words = temp;
}
words[count] = word;
count++;
return count;
}

public void removeWord(String word) //void bc returns nothing
{
int index = findWord(word); // to minimize how many times we call method
if(index == -1)
{
  return;
}

for(int n = index; n < count -1; n++)
{
  words[n] = words[n + 1];
}
words[count - 1] = "";
count --;
return;
}

public int findWord(String word) {
//iterate over each word in current list
//return index of word if found
for (int i = 0; i < count; i++)
{
  if (words[i].equals(word))
  {
    return i;
  }
  return -1;
}

public boolean equals(WordList wordList)
{
boolean boolEquals;
//override equals method in Object class
//first checks if number of words in each WordList is equal
//if true -> iterate through all words in 1 of lists + 
if(count == wordlist.count)
{
  for(int i = 0; i < count; i++)
  {
    if(findWord(words[i]) == -1)
    {
      boolEquals = false;
    }
    boolEquals = true;
  }
}
boolEquals = false;

return boolEquals;
}

public String toString()
{
//provide number of words in a string and then list each word on a new line
String result = "";
result += "There are " + count + " words in the word list: \n";
for(int i = 0; i < count; i++)
{
  result += words[i] + "\n";
}
return result;
}

public static void main(String[] args)
{
}

导致此错误消息的原因是什么？我宁愿保留构造函数，尽可能少地对代码进行更改，以使其成为一种学习体验，而不是简单地从其他人那里获取代码。

Answer 1

方法中的语法错误 - 缺失}

public int findWord（String word）{

Answer 2

您的代码在第62行缺少'}'

你可能应该在第26行将'i'替换为'n'......

我该如何修复Java中的“非法表达式启动”错误？

2 个答案: