[Edit] Java stack

[Radhika-okhade]

Description

Added new content

Issue Solved

Closes #6570

Type of Change

• Editing an existing entry (fixing a typo, bug, issues, etc)
• Updating the documentation

Checklist

• [x ] All writings are my own.
• [ x] My entry follows the Codecademy Docs style guide.
• [ x] My changes generate no new warnings.
• [ x] I have performed a self-review of my own writing and code.
• [ x] I have checked my entry and corrected any misspellings.
• [ x] I have made corresponding changes to the documentation if needed.
• [ x] I have confirmed my changes are not being pushed from my forked main branch.
• [ x] I have confirmed that I'm pushing from a new branch named after the changes I'm making.
• [ x] I have linked any issues that are relevant to this PR in the Issues Solved section.

[mamtawardhani]

Hey @Radhika-okhade the entry looks good to be merged, but can we change the image?

The arrow for the .push() should be pointing in the container, and the text "Pop removes an element", can be placesslightly to the right as it is touching the container

[mamtawardhani]

Looks good to be merged! 🚀

[github-actions]

👋 @Radhika-okhade
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