java - 如何显示 ArrayList 中除一个元素以外的所有元素？

Question

我想显示 ArrayList 中的所有元素，元素 10(即单词“will”)除外。我该怎么做呢？当我运行下面的代码时，它什么也没显示。

 private void practiceButtonActionPerformed(java.awt.event.ActionEvent evt) {
     ArrayList <String> practice1 = new ArrayList();
     Collections.addAll(practice1, "If", "she", "boarded", "the", "flight"
                        , "yesterday", "at",  "10:00,", "she", "will", "be"
                        , "here", "anytime", "now.");
     contentTextPane.setText(practice1.get(0+1+2+3+4+5+6+7+8+9+11+12+13));
 }

Answer 1

您可以像这样删除列表的第 10 个元素:

someList.remove(10);

您可以像这样连接列表的每个元素:

StringBuilder text = new StringBuilder();
for (String thisString : someList) {
    text.append(thisString).append(" ");
}

// test it
System.out.println(text.toString());