// Relative memory address inside process final int MEMORY_ADDRESS = 0x00010ABF; // Create JTrainer instance for Minesweeper process (window name) JTrainer jTrainer = new JTrainer(null, "Minesweeper"); // Write 4 bytes as hex 0x90 (nop) to process jTrainer.writeProcessMemory(MEMORY_ADDRESS, new int[] { 0x90, 0x90, 0x90, 0x90 }); // Read 4 bytes from process and print out the result byte[] bytes = jTrainer.readProcessMemory(MEMORY_ADDRESS, 4); System.out.println(Arrays.toString(MemoryUtils.bytesToUnsignedHexes(bytes));