import java.util.*;

public class TestArraysSort {

static Random r = new Random();

static String

ssource = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";

static char[] src =

ssource.toCharArray();

static String randString(int length) {

char[] buf = new char[length];

for(int i = 0; i < length; i++) {

int rnd = Math.abs(r.nextInt()) % src.length;

buf[i] = src[rnd];

}

return new String(buf);

}

static String[] randStrings(int length, int size) {

String[] s = new String[size];

for(int i = 0; i < size; i++)

s[i] = randString(length);

return s;

}

public static void print(String[] s) {

for(int i = 0; i < s.length; i++)

System.out.print(s[i] + " ");

System.out.println();

}

public static void main(String[] args) {

String[] s = randStrings(4, 10);

print(s);

Arrays.<String>sort(s);

print(s);

int loc = Arrays.<String>binarySearch(s, s[2]);

System.out.println("Location of " + s[2] + " is " + loc);

}

}