// 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));