使用for循环遍历Java中的列表 [英] iterating through list in java using for loop

问题描述

如何使用索引遍历列表数据结构？例如，考虑一个列表形式的句子，每个元素是一个单词。我可以使用索引来查看每个单词吗？像这样的东西 -

  //定义了这样的句子 -  List< String> 
 int size = sentence.size（）; 
 for（int i = 0; i< size-1; i ++）
 {
 System.out.println（sentence [i] ++ sentence [i + 1]）; 
 
 
 
 
 
 $ b 
 ofcourse上面的代码不起作用，但可以做些什么那些线？正如你所看到的，我想访问这两个连续的元素，并使用迭代器，它开始变得非常混乱。解析方案

你可以使用 get（i）方法而不是 [i] ：



  for（int i = 0; i< 1; i ++）{
 System.out.println（sentence.get（i）++ sentence获得（I + 1））; 
} 
  




How does one iterate through a list datastructure using indices. For example consider a sentence in form a list with each element being a word. Can I step through each word using the index? Something like this --

// sentence defined something like this - List<String>
int size = sentence.size();
for (int i=0; i<size-1; i++)
{
    System.out.println(sentence[i] + " " + sentence[i+1]);
}

ofcourse the above code doesn't work but is it possible to do something on those lines? As you can see, I want to access the two consecutive elements and using iterators, it starts becoming really messy.

解决方案

You can use the get(i) method instead of [i]:

for (int i=0; i<size-1; i++) {
    System.out.println(sentence.get(i) + " " + sentence.get(i+1));
}

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