http://d.hatena.ne.jp/fumokmm/20101012/1286887331

hello.java

package helloworld;

public class Hello {

	public static void main(String[] args) {
		int [][] words = {
				{17, 17, 31, 17, 17}, // H
				{15, 1, 7, 1, 15}, // E
				{1, 1, 1, 1, 15}, // L
				{1, 1, 1, 1, 15}, // L
				{14, 17, 17, 17, 14}, // O
				{0, 0, 0, 0, 0}, // [ ]
				{21, 21, 21, 10, 10}, // W
				{14, 17, 17, 17, 14}, // O
				{7, 9, 7, 5, 9}, // R
				{1, 1, 1, 1, 15}, // L
				{7, 9, 9, 9, 7}, // D
		};
		for (int [] letter : words) {
			for (int line : letter) {
				while (line > 0) {
					if (line % 2 == 1) {
						System.out.print("X");
					} else {
						System.out.print(" ");
					}
					line = line / 2;
				}
				System.out.println("");
			}
			System.out.println("\n");
		}
	}
}

result.txt

X   X
X   X
XXXXX
X   X
X   X


XXXX
X
XXX
X
XXXX


X
X
X
X
XXXX


X
X
X
X
XXXX


 XXX
X   X
X   X
X   X
 XXX









X X X
X X X
X X X
 X X
 X X


 XXX
X   X
X   X
X   X
 XXX


XXX
X  X
XXX
X X
X  X


X
X
X
X
XXXX


XXX
X  X
X  X
X  X
XXX