DAT
Interface StackChar

public interface StackChar

Character stack interface.

Method Summary

boolean	isEmpty() test whether the stack is empty
char	peek() examine the top item of the stack
char	pop() pop the top item off the stack
void	push(char a) push a new item onto the stack

Method Detail

isEmpty

public boolean isEmpty()

test whether the stack is empty

Returns:

true if the stack is empty, false otherwise

push

public void push(char a)
          throws Overflow

push a new item onto the stack

Parameters:

a - the item to push

Throws:

Overflow - if stack is full

peek

public char peek()
          throws Underflow

examine the top item of the stack

Returns:

the top item in the stack

Throws:

Underflow - if the stack is empty

pop

public char pop()
         throws Underflow

pop the top item off the stack

Returns:

the top item

Throws:

Underflow - if stack is empty