id/email
password
forgot password | create account
about | help | code help+videos | done | prefs
CodingBat code practice

 

stack_peekStack


Given a Stack of integers, return the integer that is on the top of the stack. If the stack has no elements, return 0. 

YOUR FIRST TWO LINES OF CODE MUST BE:
Stack<Integer> stack = new Stack<Integer>();
stack.addAll(list);

stack_peekStack([5, 4, 3, 2, 1]) → 1
stack_peekStack([5, 4, 3]) → 3
stack_peekStack([5]) → 5

...Save, Compile, Run (ctrl-enter)

public int stack_peekStack(List<Integer> list) { }

Editor font size %:
Shorter output


Forget It! -- delete my code for this problem

Progress graphs:
 Your progress graph for this problem
 Random user progress graph for this problem
 Random Epic Progress Graph

Java Help

Misc Code Practice

Post-solution available

Copyright Nick Parlante 2017 - privacy