Structuring Data with Java - Java - page 243

// Could check capacity and expand
stack [ depth ++] = obj ;

}

/* pop - return and remove the top element */
@Override
public

public T pop () {
-- depth ;
T tmp = stack [ depth ];
stack [ depth ] = null

null ;

return return tmp ;

}

/** peek - return the top element but don't remove it */
@Override
public

public T peek () {
iif ( depth == 0 ) {
return return null null ;

}
return return stack [ depth - 1 ];

}

public public boolean boolean hasNext () {

return return depth > 0 ;

}

public public boolean boolean hasRoom () {

return

return depth < stack . length ;

}

public public int int getStackDepth () {

return

return depth ;

}

}

The association of a particular type is done at the time the class is instantiated. For example,
to instantiate a MyStack specialized for holding BankAccount objects, you would need to
code only the following:

MyStack < BankAccount > theAccounts = new new MyStack <>( );