List转换成String数组

最新推荐文章于 2024-04-27 10:10:03 发布

最新推荐文章于 2024-04-27 10:10:03 发布 · 248 阅读

文章标签：

#java

本文提供了几个使用Java将List转换为Array的具体示例代码。通过这些示例，读者可以了解到如何利用List的toArray方法结合不同形式的目标数组初始化，实现List元素到数组的转换，并打印输出数组中的每个元素。

Java代码

List<String> list = new ArrayList<String>();
list.add("a1");
list.add("a2");
String[] toBeStored = list.toArray(new String[list.size()]);
for(String s : toBeStored) {
System.out.println(s);
}

List<String> list = new ArrayList<String>(); list.add("a1"); list.add("a2"); String[] toBeStored = list.toArray(new String[list.size()]); for(String s : toBeStored) { System.out.println(s); }

或

Java代码

List<String> list = new ArrayList<String>();
list.add("a1");
list.add("a2");
String[] toBeStored = new String[al.size()];
list.toArray(toBeStored);
for (String s : toBeStored) {
System.out.println(s);
}

List<String> list = new ArrayList<String>(); list.add("a1"); list.add("a2"); String[] toBeStored = new String[al.size()]; list.toArray(toBeStored); for (String s : toBeStored) { System.out.println(s); }

或

Java代码

List<String> list = new ArrayList<String>();
list.add("a1");
list.add("a2");
String[] toBeStored = new String[]{};
String[] str = al.toArray(toBeStored);
for (String s : str) {
System.out.println(s);
}

List<String> list = new ArrayList<String>(); list.add("a1"); list.add("a2"); String[] toBeStored = new String[]{}; String[] str = al.toArray(toBeStored); for (String s : str) { System.out.println(s); }

或

Java代码