为什么"Object [] object = new String [] []"编译？ - Java

Question

为什么这段代码会编译？

Object[] object = new String[5][5];

我的意思是,如果我创建的数组对象的尺寸不同于引用变量中指定的数组,我为什么要这样做？

这不编译:

String[] strings = new String[5][5];

那么这里发生了什么？

Answer 1

第一个可以编译，因为它String[]是一个Object. 第二个无法编译，因为String不是String[].

Object[] object = new String[5][5];  // Means each element is an String[] which is an Object as well.

String[] strings = new String[5][5]; // Also Means each element is an String[] which is not same as just String.