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What will be the output of the code?

A. LinkedHashMap: {B=5, A=2, C=1, E=3, D=4}; TreeMap: {B=5, D=4, E=3, A=2, C=1}
B. LinkedHashMap: {B=5, A=2, C=1, D=4, E=3}; TreeMap: {B=5, A=2, C=1, D=4, E=3}
C. LinkedHashMap: {A=2, B=5, C=1, D=4, E=3}; TreeMap: {C=1, A=2, E=3, D=4, B=5}
D. LinkedHashMap: {A=2, B=5, C=1, D=4, E=3}; TreeMap: {B=5, D=4, E=3, A=2, C=1}
E. Error
F. None of the above

Explanation:
1. LinkedHashMap Behavior:
• LinkedHashMap maintains the insertion order of elements.
• Here, linkedHashMap will display entries in the exact order they were inserted: {A=2, B=5, C=1, D=4, E=3}.

2. TreeMap with Custom Comparator:
• TreeMap typically orders entries based on the natural order of keys, but here it uses a custom comparator to sort entries in descending order based on values from linkedHashMap.
• Comparator.comparingInt(linkedHashMap::get).reversed() sorts treeMap by values in descending order, resulting in {B=5, D=4, E=3, A=2, C=1}.

3. Expected Output:
• The LinkedHashMap output maintains the insertion order.
• The TreeMap output shows entries sorted by values in descending order based on linkedHashMap values.

Correct Answer: D



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What will be the output of the code?

A. LinkedHashMap: {B=5, A=2, C=1, E=3, D=4}; TreeMap: {B=5, D=4, E=3, A=2, C=1}
B. LinkedHashMap: {B=5, A=2, C=1, D=4, E=3}; TreeMap: {B=5, A=2, C=1, D=4, E=3}
C. LinkedHashMap: {A=2, B=5, C=1, D=4, E=3}; TreeMap: {C=1, A=2, E=3, D=4, B=5}
D. LinkedHashMap: {A=2, B=5, C=1, D=4, E=3}; TreeMap: {B=5, D=4, E=3, A=2, C=1}
E. Error
F. None of the above

Explanation:
1. LinkedHashMap Behavior:
• LinkedHashMap maintains the insertion order of elements.
• Here, linkedHashMap will display entries in the exact order they were inserted: {A=2, B=5, C=1, D=4, E=3}.

2. TreeMap with Custom Comparator:
• TreeMap typically orders entries based on the natural order of keys, but here it uses a custom comparator to sort entries in descending order based on values from linkedHashMap.
• Comparator.comparingInt(linkedHashMap::get).reversed() sorts treeMap by values in descending order, resulting in {B=5, D=4, E=3, A=2, C=1}.

3. Expected Output:
• The LinkedHashMap output maintains the insertion order.
• The TreeMap output shows entries sorted by values in descending order based on linkedHashMap values.

Correct Answer: D

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