Here is a program in Java to move all uppercase characters to the end of a given string: 

import java.util.Arrays;

public class Main {
    public static void main(String[] args) {
        String input = "MoveAllUpperCaseToEnd";
        char[] characters = input.toCharArray();
        int len = characters.length;
        int i = 0, j = len - 1;
        while (i < j) {
            if (Character.isUpperCase(characters[i])) {
                char temp = characters[i];
                characters[i] = characters[j];
                characters[j] = temp;
                j--;
            } else {
                i++;
            }
        }
        String output = new String(characters);
        System.out.println("Input String: " + input);
        System.out.println("Output String: " + output);
    }
}

Explanation: 

The input string is converted into a character array using the toCharArray() method. 

Two pointers i and j are initialized. i points to the start of the array and j points to the end. 

In each iteration, the program checks if the character at the ith index is uppercase. 

If it is, the character is swapped with the character at the jth index, and j is decremented. 

If it is not uppercase, i is incremented. 

The loop continues until i is greater than or equal to j. 

The final character array is converted back into a string using the String constructor. 

The input and output strings are printed to the console.