Sort an array: case-sensitive : Arrays Utilities « Collections « Java Tutorial

1. Java Tutorial
2. Collections
3. Arrays Utilities

import java.util.Arrays;

public class Main {
  public static void main(String args[]) {
    String[] myArray = new String[] { "A", "a", "B" };
    Arrays.sort(myArray);
    System.out.println(Arrays.toString(myArray));
  }
}
//[A, B, a]