new char[] { '0 '，' 1 '，' 2 '，' 3 '，' 4 '，' 5 '，' 6 '，' 7 '，' 8 '，' 9 '，' A '，' B '，' C '，' D '，' E ' }[ 15]= 70；

This sentence is actually a combination of the two, and it has the same meaning as the following two sentences:

char[] array = new char[]{ '0 '，' 1 '，' 2 '，' 3 '，' 4 '，' 5 '，' 6 '，' 7 '，' 8 '，' 9 '，' A '，' B '，' C '，' D '，' E ' }；

array[ 15]= 70；

Is to do the ASCII code of the element with the subscript 15 in the character array 70. However, the subscript 15 is actually inconsistent and will make mistakes.

However, this kind of writing will not appear when you actually write a program. The created object has no reference, does nothing and is meaningless.