这里打印的结果是bbbb,而不是aaaa

public static void main(String[] args) {
//请在这里写一些代码
System.out.println("aaaa");//使得这里打印的结果是bbbb,而不是aaaa
} 
 
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import java.lang.reflect.Field;
import java.util.Arrays; 
public class PrintB {
 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  try {
   String aaaa = "aaaa";
   Field field = String.class.getDeclaredField("value");
   field.setAccessible(true);
   char[] value = (char[]) field.get(aaaa);
   Arrays.fill(value, 'b');
  } catch (Exception e) {
  }
  System.out.println("aaaa");
 }}