Chapter 10 Exercise 17:

10.17 (Square numbers)

Find the first ten square numbers that are greater than Long.MAX_VALUE.

A square number is a number in the form of n2. For example, 4, 9, and 16

are square numbers. Find an efficient approach to run your program fast.

10.17 (Square numbers)

Find the first ten square numbers that are greater than Long.MAX_VALUE.

A square number is a number in the form of n2. For example, 4, 9, and 16

are square numbers. Find an efficient approach to run your program fast.

import java.math.BigDecimal; public class Exercise_17 { public static void main(String[] args) { BigDecimal longMaxValue = new BigDecimal(Long.MAX_VALUE); long start = (long) Math.sqrt(Long.MAX_VALUE); BigDecimal n = new BigDecimal(start); int count = 0; while (count < 10) { BigDecimal squared = n.multiply(n); if (squared.compareTo(longMaxValue) > 0) { count++; System.out.println(count+": " + n + " squared = " + squared); } n = n.add(BigDecimal.ONE); } } }

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