Java 数组和列表相互转换（Array to List and List to Array）

1.convert Array to List 将数组转换为列表

public class Test {
    public static void main(String[] args) {
        //创建数组
        String[] array={
    "Java","Python","PHP","C++"};
        System.out.println("Printing Array: "+ Arrays.toString(array));
        //将数组转换为列表
        List<String> list=new ArrayList<String>();
        for(String lang:array){
            list.add(lang);
        }
        System.out.println("Printing List: "+list);
    }
}
Printing Array: [Java, Python, PHP, C++]
Printing List: [Java, Python, PHP, C++]

convert List to Array 将列表转换为数组

public class Test {
    public static void main(String[] args) {
        List<String> fruitList = new ArrayList<>();
        fruitList.add("Mango");
        fruitList.add("Banana");
        fruitList.add("Apple");
        fruitList.add("Strawberry");
        System.out.println("Printing List: "+fruitList);
        //将 ArrayList 转换为数组
        String[] array = fruitList.toArray(new String[fruitList.size()]);
        System.out.println("Printing Array: "+ Arrays.toString(array));
    }
}
Printing List: [Mango, Banana, Apple, Strawberry]
Printing Array: [Mango, Banana, Apple, Strawberry]