Stack
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What is Stack?
A stack is a fundamental data structure that follows the Last-In, First-Out (LIFO) principle. Imagine a stack of plates; you can only add or remove plates from the top. This means the last element added to the stack is the first one to be removed. Stacks are used to manage function calls, evaluate expressions, and implement undo/redo functionality.
Free resources to learn Stack
- ArticleJava Stack Tutorial
- ArticleGuide to Java Stack
More in stage 11: Regular Expressions
Stack: common questions
Can I learn Stack in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Stack in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Stack tutorial for beginners?
It is lesson 47 of 86 in the free Java roadmap, in stage 11, Regular Expressions. If you are new to Java, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.