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要以编程方式选择/取消选择HTML input type = checkbox元素，请使用DOMInputElement.setChecked（boolean checked）方法。以下示例演示如何在加载的网页上查找复选框元素并选择它： ``` import com.teamdev.jxbrowser.chromium.Browser; import com.teamdev.jxbrowser.chromium.dom.By; import com.teamdev.jxbrowser.chromium.dom.DOMDocument; import com.teamdev.jxbrowser.chromium.dom.DOMInputElement; import com.teamdev.jxbrowser.chromium.events.FinishLoadingEvent; import com.teamdev.jxbrowser.chromium.events.LoadAdapter; import com.teamdev.jxbrowser.chromium.swing.BrowserView; import javax.swing.*; import java.awt.*; /** * The sample demonstrates how to programatically select checkbox. */ public class DOMSelectCheckBoxSample { public static void main(String[] args) { Browser browser = new Browser(); BrowserView view = new BrowserView(browser); JFrame frame = new JFrame(); frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); frame.add(view, BorderLayout.CENTER); frame.setSize(700, 500); frame.setLocationRelativeTo(null); frame.setVisible(true); browser.addLoadListener(new LoadAdapter() { @Override public void onFinishLoadingFrame(FinishLoadingEvent event) { if (event.isMainFrame()) { DOMDocument document = event.getBrowser().getDocument(); DOMInputElement element = (DOMInputElement) document.findElement(By.name("agreement")); element.setChecked(true); } } }); browser.loadHTML("<html><body><form action=''>" + "<input type='checkbox' name='agreement' value='agreed'>I agree<br>" + "</form></body></html>"); } } ```