isArray()判断对象是否为数组

package MapTest;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;

public class Map8 {
    
    public static void main(String[] args) {
    
        String str = "aa";
        Boolean b = true;
        Integer a = 1;
        Double c = 1.1;
        ArrayList<String> list = new ArrayList<>();
        Collections.addAll(list,"a","b","c");
        int[] arr = new int[3];
        HashMap<String, String> hashMap = new HashMap<>();

        boolean array = list.getClass().isArray();
        System.out.println("array = " + array);

        boolean array1 = a.getClass().isArray();
        System.out.println("array1 = " + array1);

        boolean array2 = c.getClass().isArray();
        System.out.println("array2 = " + array2);

        boolean array3 = b.getClass().isArray();
        System.out.println("array3 = " + array3);

        boolean array4 = str.getClass().isArray();
        System.out.println("array4 = " + array4);

        boolean array5 = arr.getClass().isArray();
        System.out.println("array5 = " + array5);

        boolean array6 = hashMap.getClass().isArray();
        System.out.println("array6 = " + array6);



    }
}