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Java example source code file (VMVersionInfoPanel.java)

This example Java source code file (VMVersionInfoPanel.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

awt, borderlayout, gui, info, internal, jeditorpane, jpanel, release, string, stringbuffer, swing, type, vmversioninfopanel

The VMVersionInfoPanel.java Java example source code

/*
 * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

package sun.jvm.hotspot.ui;

import java.awt.*;
import javax.swing.*;

import sun.jvm.hotspot.runtime.*;

/** Shows VM version information */

public class VMVersionInfoPanel extends JPanel {
    private JEditorPane         versionPane;

    public VMVersionInfoPanel() {
        initUI();
    }

    private void initUI() {
        setLayout(new BorderLayout());
        versionPane = new JEditorPane();
        versionPane.setContentType("text/html");
        versionPane.setEditable(false);
        versionPane.setText(getVersionInfo());

        add(versionPane, BorderLayout.CENTER);
    }

    private String getVersionInfo() {
       VM vm = VM.getVM();
       StringBuffer buf = new StringBuffer();
       buf.append("<html>VM Version Info");
       buf.append("<body>");

       // VM type
       buf.append("<tr>");
       buf.append("<td>");
       if (vm.isCore()) {
          buf.append("<b>core");
       } else if(vm.isClientCompiler()) {
          buf.append("<b>client");
       } else if(vm.isServerCompiler()) {
          buf.append("<b>server");
       } else {
          buf.append("<b>unknown");
       }
       buf.append("</td>");

       // VM release
       String release = vm.getVMRelease();
       if (release != null) {
          buf.append("<tr>");
       }

       // VM internal info
       String internalInfo = vm.getVMInternalInfo();
       if (internalInfo != null) {
          buf.append("<tr>");
       }

       buf.append("</table>");
       return buf.toString();
    }
}



Other Java examples (source code examples)


Here is a short list of links related to this Java VMVersionInfoPanel.java source code file:



VM Type
VM Release");
          buf.append(release);
          buf.append("</b>
VM Internal Info");
          buf.append(internalInfo);
          buf.append("</b>
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