集合转数组

public class People{
    private String name;

    public People(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return "People{" +
                "name='" + name + '\'' +
                '}';
    }

    @Test
    public void test1(){
        ArrayList<People> peoples = new ArrayList<People>();
        peoples.add(new People("guo"));
        peoples.add(new People("da"));
        People[] peoples1 = new People[peoples.size()];
        peoples.toArray(peoples1);
        System.out.println(Arrays.toString(peoples1));
    }
}