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import java.util.Arrays;

public class MainClass {
    public static void main(String args[]) throws Exception {
        int array[] = { 2, 5, -2, 6, -3, 8, 0, -7, -9, 4 };
        Arrays.sort(array);
        printArray("Sorted Array Result", array);
        int index = Arrays.binarySearch(array, 2);
        System.out.println("Element 2 is at position " + index);
    }
    private static void printArray(String message, int array[]) {
        System.out.println(message + ": [length: " + array.length + "]");
        for (int i = 0; i < array.length; i++) {
            if(i != 0){
                System.out.print(", ");
            }
            System.out.print(array[i]);
        }
        System.out.println();
    }
}

Sorted Array Result: [length: 10] -9, -7, -3, -2, 0, 2, 4, 5, 6, 8
Element 2 is at position 5