public class MyGame implements ApplicationListener {
  public void create () {
    // STUB
  }
  public void render () {
    // STUB
  }
  public void resize (int width, int height) { 
    // STUB
  }
  public void pause () { 
    // STUB
  }
  public void resume () {
    // STUB
  }
  public void dispose () {
    // STUB
  }
}
import com.badlogic.gdx.backends.lwjgl.LwjglApplication;
public class MyDesktopGame {
  public static void main(String[] args) {
    new LwjglApplication(new MyGame(), "My Game", 480, 320, false);
  }
}

public class Main {
  public static void main(String[] args) {
    try {
      붕어빵 a = new 붕어빵();
      붕어빵 b = (붕어빵) a.clone();
      System.out.println(a.price);
      System.out.println(b.price);
    } catch (CloneNotSupportedException e) {
      e.printStackTrace();
    }
  }
}
class 붕어빵 implements Cloneable {
  public int price = 200;
  @Override
  protected Object clone() throws CloneNotSupportedException {
    붕어빵 obj = (붕어빵) super.clone();
    obj.price = price;
    return obj;
  }
}

import java.io.Serializable;
import org.apache.commons.lang3.SerializationUtils;
public class Main {
  public static void main(String[] args) {
    붕어빵 a = new 붕어빵();
    붕어빵 b = SerializationUtils.clone(a);
    System.out.println(a.price);
    System.out.println(b.price);
  }
}
class 붕어빵 implements Serializable {
  public int price = 200;
}

import org.apache.commons.lang3.text.WordUtils;
public class Main {
  public static void main(String[] args) {
    // capitalize 메소드는 단어의 첫 글자를 대문자로 치환한다.
    System.out.println(WordUtils.capitalize("hello world!"));
    // initials 메소드는 단어들의 이니셜을 구한다.
    // 즉, 각 단어들의 첫글자만 남긴다.
    System.out.println(WordUtils.initials("Java development Kit"));
    // wrap 메소드는 텍스트 편집기의 워드랩 기능을 제공한다.
    // 즉, 단어별로 한 라인의 남은 칸에 다 적히지 않으면 해당 단어를 다음 라인에 적는다.
    System.out.println(WordUtils.wrap("Hello world!", 8 ));
    System.out.println(WordUtils.wrap("Hello world!", 12));
  }
}

import org.apache.commons.lang3.StringUtils;
public class Main {
  public static void main(String[] args) {
    // abbreviate 메소드는 문장을 축약하는 기능을 제공한다.
    // 게시판 제목을 줄일 때 사용하면 좋을 듯 하다.
    System.out.println(StringUtils.abbreviate("Hello world!", 5));
    System.out.println(StringUtils.abbreviate("Hello", 5));
    // capitalize 메소드는 문장의 첫 글자를 대문자로 만드는 기능을 제공한다.
    // 워드 프로세서에서 자주 사용되는 기능이다.
    System.out.println(StringUtils.capitalize("hello world!"));
    // center 메소드는 문장을 가운데 정렬하는 기능을 제공한다.
    System.out.println(StringUtils.center("Hello world!", 20));
    System.out.println(StringUtils.center("Hello world!", 20, '*'));
    // containsAny 메소드는 해당 문장에 포함된 문자나 문자열이 있는지 판단한다.
    // 예제처럼 가변인자로도 받을 수 있다.
    System.out.println(StringUtils.containsAny("Hello world!", 'a', 'b', 'c', 'd'));
    System.out.println(StringUtils.containsAny("Hello world!", 'a', 'b', 'c'));
    // join 메소드는 각 문자열 사이에 문자나 문자열을 집어넣는 기능을 제공한다.
    // 예제로 전화번호 사이의 하이픈을 넣어보았다.
    System.out.println(StringUtils.join(new String[] { "010", "1234", "4567" }, '-'));
    // repeat 메소드는 해당 문자열을 반복해주는 기능을 제공한다.
    // 패스워드가 저장된 이후 접속 시 사용하면 유용할 듯하다.
    System.out.println(StringUtils.repeat('*', 5));
  }
}

package addactiontoview;
import org.eclipse.ui.application.IWorkbenchConfigurer;
import org.eclipse.ui.application.IWorkbenchWindowConfigurer;
import org.eclipse.ui.application.WorkbenchAdvisor;
import org.eclipse.ui.application.WorkbenchWindowAdvisor;
public class ApplicationWorkbenchAdvisor extends WorkbenchAdvisor {
  private static final String PERSPECTIVE_ID = "AddActiontoView.perspective";
  public WorkbenchWindowAdvisor createWorkbenchWindowAdvisor(
      IWorkbenchWindowConfigurer configurer) {
    return new ApplicationWorkbenchWindowAdvisor(configurer);
  }
  public String getInitialWindowPerspectiveId() {
    return PERSPECTIVE_ID;
  }
  @Override
  public void initialize(IWorkbenchConfigurer configurer) {
    super.initialize(configurer);
    configurer.setSaveAndRestore(true);
  }
}

package de.vogella.rcp.intro.perspective;
import org.eclipse.ui.IPageLayout;
import org.eclipse.ui.IPerspectiveFactory;
public class Perspective implements IPerspectiveFactory {
  public void createInitialLayout(IPageLayout layout) {
    String editorArea = layout.getEditorArea();
    layout.setEditorAreaVisible(false);
    layout.setFixed(true);
    layout.addStandaloneView(View.ID,  false, IPageLayout.LEFT, 1.0f, editorArea);
  }
}

package perspectivetest;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.swt.graphics.Point;
import org.eclipse.ui.IWorkbenchPreferenceConstants;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.application.ActionBarAdvisor;
import org.eclipse.ui.application.IActionBarConfigurer;
import org.eclipse.ui.application.IWorkbenchWindowConfigurer;
import org.eclipse.ui.application.WorkbenchWindowAdvisor;
public class ApplicationWorkbenchWindowAdvisor extends WorkbenchWindowAdvisor {
  public ApplicationWorkbenchWindowAdvisor(
    IWorkbenchWindowConfigurer configurer) {
    super(configurer);
  }
  public ActionBarAdvisor createActionBarAdvisor(
    IActionBarConfigurer configurer) {
    return new ApplicationActionBarAdvisor(configurer);
  }
  public void preWindowOpen() {
    IWorkbenchWindowConfigurer configurer = getWindowConfigurer();
    configurer.setInitialSize(new Point(400, 300));
    configurer.setShowCoolBar(false);
    configurer.setShowStatusLine(false);
    configurer.setTitle("RCP Application");
    configurer.setShowPerspectiveBar(true);
    // Set the preference toolbar to the left place
    // If other menus exists then this will be on the left of them
    IPreferenceStore apiStore = PlatformUI.getPreferenceStore();
    apiStore.setValue(IWorkbenchPreferenceConstants.DOCK_PERSPECTIVE_BAR, "TOP_LEFT");
  }
}

package de.vogella.rcp.intro.statusline;
import org.eclipse.swt.graphics.Point;
import org.eclipse.ui.application.ActionBarAdvisor;
import org.eclipse.ui.application.IActionBarConfigurer;
import org.eclipse.ui.application.IWorkbenchWindowConfigurer;
import org.eclipse.ui.application.WorkbenchWindowAdvisor;
public class ApplicationWorkbenchWindowAdvisor extends WorkbenchWindowAdvisor {
    public ApplicationWorkbenchWindowAdvisor(IWorkbenchWindowConfigurer configurer) {
        super(configurer);
    }
    public ActionBarAdvisor createActionBarAdvisor(IActionBarConfigurer configurer) {
        return new ApplicationActionBarAdvisor(configurer);
    }
    @Override
    public void preWindowOpen() {
        IWorkbenchWindowConfigurer configurer = getWindowConfigurer();
        configurer.setInitialSize(new Point(400, 300));
        configurer.setShowCoolBar(false);
        configurer.setShowStatusLine(false);
        configurer.setTitle("Status Line Example");
        configurer.setShowStatusLine(true);
    }
}

package de.vogella.rcp.intro.statusline;
import org.eclipse.jface.action.IStatusLineManager;
import org.eclipse.swt.graphics.Point;
import org.eclipse.ui.application.ActionBarAdvisor;
import org.eclipse.ui.application.IActionBarConfigurer;
import org.eclipse.ui.application.IWorkbenchWindowConfigurer;
import org.eclipse.ui.application.WorkbenchWindowAdvisor;
public class ApplicationWorkbenchWindowAdvisor extends WorkbenchWindowAdvisor {
    public ApplicationWorkbenchWindowAdvisor(IWorkbenchWindowConfigurer configurer) {
        super(configurer);
    }
    public ActionBarAdvisor createActionBarAdvisor(IActionBarConfigurer configurer) {
        return new ApplicationActionBarAdvisor(configurer);
    }
    @Override
    public void preWindowOpen() {
        IWorkbenchWindowConfigurer configurer = getWindowConfigurer();
        configurer.setInitialSize(new Point(400, 300));
        configurer.setShowCoolBar(false);
        configurer.setShowStatusLine(false);
        configurer.setTitle("Status Line Example");
        configurer.setShowStatusLine(true);
    }
    // This is the new method
    @Override
    public void postWindowOpen() {
        IStatusLineManager statusline = getWindowConfigurer()
            .getActionBarConfigurer().getStatusLineManager();
        statusline.setMessage(null, "Status line is ready");
    }
}

package de.vogella.rcp.intro.statusline;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.part.ViewPart;
public class ViewPart1 extends ViewPart {
    boolean pressed = false;
    @Override
    public void createPartControl(Composite parent) {
        Button setStatusLine = new Button(parent, SWT.PUSH);
        setStatusLine.setText("Set Statusline ");
        setStatusLine.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent e) {
                String message = "I would like to say hello to you.";
                if (pressed) {
                    message = "Thank you for using me";
                }
                setStatusLine(message);
                pressed = !pressed;
            }
        });
    }
    private void setStatusLine(String message) {
        // Get the status line and set the text
        IActionBars bars = getViewSite().getActionBars();
        bars.getStatusLineManager().setMessage(message);
    }
    @Override
    public void setFocus() {
    }
}