diff tool 을 찾습니다.

class A {
  private int i;
 
  public String methodAAA() {
    return "abc";
  }
 
  public String methodBBB() {
    return "XXX";
  }
}

class A { 
  public String methodBBB() 
  {
    return "XXX";
  } 
 
  public String methodAAA() 
  {
    return "abc";
  }
 
  private int j;
}