libliboom

public abstract interface IFile {
    public abstract void close();
}

libliboom

public MapRecipe(Map<?, ?> map) {
    if (map == null) throw new NullPointerException("map is null");
    entries = new ArrayList<Object[]>(map.size());
    if (RecipeHelper.hasDefaultConstructor(map.getClass())) {
        this.typeClass = map.getClass();
    } else if (map instanceof SortedMap) {
        this.typeClass = TreeMap.class;
    } else if (map instanceof ConcurrentMap) {
        this.typeClass = ConcurrentHashMap.class;
    } else {

libliboom

class Transaction {
    private int value;

    /*package*/ Transaction(int value, Account credit, Account debit) {
        this.value = value;
        credit.addCredit(this);
        debit.addDebit(this);
    }

    /*package*/ int getValue() {

libliboom

  bounds.translateBy(10, 20) // 변경 가능한 Rectangle 객체
  bounds = bounds.translateBy(10, 20) // 값 스타일 Rectangle 객체

libliboom

public String substring(int beginIndex) {
    if (beginIndex < 0) {
        throw new StringIndexOutOfBoundsException(beginIndex);
    }
    int subLen = value.length - beginIndex;
    if (subLen < 0) {
        throw new StringIndexOutOfBoundsException(subLen);
    }
    return (beginIndex == 0) ? this : new String(value, beginIndex, subLen);
}

libliboom

  private String name;
  public void runTest() throws Exception {
    Class[] noArguments = new Class[0];
    Method method = getClass().getMethod(name, noArguments);
    method.invoke(this, new Object[0]);
  }

libliboom

class ExchangeRate {
    private int CountryCode;
    
    public void b() {
        Info info = new Info();
        int d = info.day;
        int m = info.month;
        int y = info.year;
    }

libliboom

class GraphicEditor {
    ...
    public void mouseDown() {
        tool.mouseDown();
    }
    ...
}

class RectangleTool {
    private GraphicEditor editor;

libliboom

class GraphicEditor {
    ...
    public void mouseDown() {
        tool.mouseDown(this);
    }
    ...
}

class RectangleTool {
    ...

libliboom

  // 의존관계가 있는 경우
  Rectangle void setWidth(int width) {
      this.width = width;
      area = width * height;
  }

  // 의존관계가 있으나 명확하지 않은 경우
  Widget void setBorder(int width) {
      this.width = width;
      notifyListener