Add two controls to RootPanel
package com.java2s.gwt.client; import com.google.gwt.core.client.*; import com.google.gwt.user.client.ui.*; public class GWTClient implements EntryPoint{ public void onModuleLoad() { final Button button = new Button("Click me"); final Label label = new Label(); button.addClickListener(new ClickListener() { public void onClick(Widget sender) { if (label.getText().equals("")) label.setText("Hello World!"); else label.setText(""); } }); RootPanel.get("slot1").add(button); RootPanel.get("slot2").add(label); } }
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