I’m stuck on a Java question and need an explanation.

using Array to implement the Stack, with Push and Pop operation and any other operations that you might need.

Use your Stack class to match balanced parentheses, brackets, and braces. For example, input string ”{ ( [ ] ) [ ( ) ] } should return TRUE, and “( ( [ ] [ ) { } )” should return FALSE.

Implementing this by creating a Stack, pushing a (or [or {onto the stack whenever one of those characters is seen, and popping it off when the corresponding closing character is seen. If the wrong character is at the top of the stack, the parentheses do not match, and the method should return false.

Use appropriate error messages; stack-full, stack-empty, and so on.