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The sum of squares of the first 10 natural numbers is:1^2 + 2^2 + ... + 10^2 = 385The sum of their squares is:(1 + 2 + ... + 10) ^2 = 55^2 = 3025So, the sum of squares of the first 10 natural numbers and the squared difference 3025-385=2640So, what

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1 ImportJava.util.HashMap;2 ImportJava.util.Map;3 ImportJava.util.Map.Entry;4 //in a positive integer less than 99999, find the number that meets the following criteria, which is both a full square number,5 //another two digits are the same, such as:

Topic from Project Euler 6th: https://projecteuler.net/problem=6# Project Euler:problem 6:sum Square difference# The Sum of the squares of the first ten natural numbers is,# 1**2 + 2** 2 + ... + 10**2 = 385# The square of the sum of the first ten

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