Initialize Git Repository:

You create a new directory named "git-demo" and navigate into it.

You run git init to initialize a new Git repository in this directory.

Create file1.java and file2.java:

You create two empty Java source code files named "file1.java" and "file2.java" inside the "git-demo" directory.

Add and Commit file1.java and file2.java:

You use git add to stage the changes of "file1.java" and "file2.java," preparing them for commit.

You use git commit to commit the staged changes with a commit message indicating that you added the two files.

Create file3.java:

You create another empty Java source code file named "file3.java" inside the "git-demo" directory.

Create Stash for file3.java:

You haven't committed "file3.java" yet, but you want to temporarily put aside your changes. You use git stash to stash (temporarily save) the uncommitted changes.

Verify Stash List:

You use git stash list to see the list of stashes you've created. You should see the stash you created in step 5.

Apply Stash Back:

You use git stash apply to apply the most recent stash you created (from step 5) back to your working directory. This restores the changes made in "file3.java."

Clear the Stash:

You use git stash clear to remove all stashes you've created. This clears the stash list.

Add file3.java to Staging Area:

You use git add to stage the changes in "file3.java," preparing it for commit.

Commit file3.java:

You use git commit to commit the staged changes in "file3.java" with a commit message indicating that you added the file.

Do a Soft Reset to 1st Commit:

You use git reset --soft HEAD~1 to move the branch pointer back to the previous commit, effectively "undoing" the commit but keeping the changes in your working directory and staging area.

Revert the Reset by Doing a Commit:

You mistakenly use git commit -c ORIG_HEAD to try to commit the changes you reset in step 11. This opens a text editor for a commit message, which wasn't the intended action.

Do a Mixed Reset to 1st Commit:

You use git reset --mixed HEAD~1 to move the branch pointer back to the previous commit, effectively "undoing" the commit and clearing the changes from the staging area but keeping the changes in your working directory.

Revert the Reset by Adding Files to Staging Area and Commit:

You use git add to stage the changes in all three files (file1.java, file2.java, file3.java).

You use git commit to commit these staged changes, effectively bringing the files back to their state before the mixed reset.

Do a Hard Reset:

You use git reset --hard HEAD~1 to forcefully move the branch pointer back to the previous commit, discarding all changes in the working directory and staging area.

Verify Changes Removed:

You can run git status, git log, and inspect files to ensure that the changes you intended to remove are indeed no longer present.

It's important to note that Git's behavior might vary based on the specific commands you use, especially when performing resets. Always double-check the results of each step to make sure you're achieving the desired outcome.