Wrap Example

import java.nio.charset.StandardCharsets;
import java.nio.charset.Charset;
import java.nio.ByteBuffer;

public class WrapExample {

     public static void main(String []args) {

         byte[] data = "HECTOR".getBytes(StandardCharsets.UTF_8);

         printBytesValues(data);

         ByteBuffer buffer = ByteBuffer.wrap(data);

         printBytesValues(buffer.array());

         buffer.position(0);

         int aIntValue = buffer.getInt();

         System.out.println(String.format("0x%02X", aIntValue));

         if (aIntValue == 0x48454354) {
             System.out.println("This is good");
         } else {
             System.out.println("This is not good");
         }

         buffer.position(1);

         aIntValue = buffer.getInt();

         System.out.println(String.format("0x%02X", aIntValue));

         if (aIntValue == 0x4543544F) {
             System.out.println("This is good");
         } else {
             System.out.println("This is not good");
         }
     }

     static void printBytesValues(byte[] data) {

         System.out.print("Data: ");
         for (int i = 0; i < data.length; i ++) {
              System.out.print(String.format("[0x%02X]", data[i]));
         }
         System.out.print("\n");
     }
}