場景:
    java把Map轉換為二維陣列
1.把Map轉換為二維陣列

public static Object[][] getMapKeyValue(Map map) {
        Object[][] object = null;
        if ((map != null) && (!map.isEmpty())) {
            int size = map.size();
            object = new Object[size][2];
            Iterator iterator = map.entrySet().iterator();
            for (int i = 0; i < size; i++) {
                Map.Entry entry = (Map.Entry) iterator.next();
                Object key = entry.getKey();
                Object value = entry.getValue();
                object[i][0] = key;
                object[i][1] = value;
            }
        }
        return object;
    }
 

2.以上,TKS.