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/**
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 * BinarySearch.java
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 *
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 * My first attempt; crude, but it works.
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 */
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import java.util.Scanner;
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public class BinarySearch {
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	public static void main(String[] args) {
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		Scanner sin = new Scanner(System.in);
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		int[] array = getUserInts(sin);
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		int[] array = getInts(sin);
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		int n = 0, pos = 0, low = 0, high = (array.length - 1);
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		System.out.print("Enter a number to find: ");
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		n = sin.nextInt();
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		if (n < array[low] || n > array[high])
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			System.out.println("Impossible to find.");
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		else if (n == array[low] || n == array[high])
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			System.out.println("array[" + pos + "]=\t" + array[pos]);
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		else {
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			while (array[pos] != n) {
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				if (n >= ((low + high) / 2)) low = (low + high) / 2;
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				else if (n <= ((low + high) / 2)) high = (low + high) / 2;
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				else break;
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				pos = low;
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			}
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			System.out.println("array[" + pos + "]=\t" + array[pos]);
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		}		
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	}
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	public static int[] getInts() {
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		int[] array = new int[1000];
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		for (int i = 0; i < (array.length - 1); i++)
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			array[i] = i;
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		return array;
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	}
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}
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