Question: 1) If a header node is used, write the piece of code( in java) that indicates (true) a list with only one item and illustrate

1) If a header node is used, write the piece of code( in java) that indicates (true) a list with only one item and illustrate by diagrams

2) Write the piece of code in java for a singlylinked list moving to the position immediately prior to the current position

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