Examples of java.util.Properties.propertyNames()

java.util.Properties.propertyNames()
Returns an enumeration of all the keys in this property list, including distinct keys in the default property list if a key of the same name has not already been found from the main properties list. @return an enumeration of all the keys in this property list, includingthe keys in the default property list. @throws ClassCastException if any key in this property listis not a string. @see java.util.Enumeration @see java.util.Properties#defaults @see #stringPropertyNames

        } else {
          // Read the static information from the GenericObjectEditor.props
          GEOProps = Utils.readProperties("weka/gui/GenericObjectEditor.props");
        }
      }
      Enumeration en = GEOProps.propertyNames();
      while (en.hasMoreElements()) {
        String geoKey = (String)en.nextElement();
        //  System.err.println("GEOKey " + geoKey);


        // try to match this key with one in the Beans.props file

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      m_configAndPerspectives.setLayout(new BorderLayout());
      m_configAndPerspectives.add(m_perspectiveToolBar, BorderLayout.CENTER);
      
      try {
        Properties visible = Utils.readProperties(VISIBLE_PERSPECTIVES_PROPERTIES_FILE);
        Enumeration keys = (java.util.Enumeration)visible.propertyNames();
        if (keys.hasMoreElements()) {


          String toolBarIsVisible = 
            visible.getProperty("weka.gui.beans.KnowledgeFlow.PerspectiveToolBarVisisble");
          if (toolBarIsVisible != null && toolBarIsVisible.length() > 0) {

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            for (int i = 0; i < l.getLength(); i++) {
                Element e = (Element) l.item(i);
                String text = e.getTextContent();
                Properties props = new Properties();
                props.load(new ByteArrayInputStream(text.trim().getBytes()));
                Enumeration en = props.propertyNames();
                while (en.hasMoreElements()) {
                    String k = (String) en.nextElement();
                    String v = props.getProperty(k);
                    m.getMainAttributes().putValue(k, v);
                }

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            }
            return;
        }


        // Perform variable substitution on specified properties.
        for (Enumeration e = props.propertyNames(); e.hasMoreElements();) {
            String name = (String) e.nextElement();
            String value = System.getProperty(name, props.getProperty(name));
            System.setProperty(name, substVars(value, name, null, props));
        }
    }

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        Properties configProps = loadPropertiesFile(configPropURL, false);


        // Perform variable substitution for system properties.
        for (Enumeration e = configProps.propertyNames(); e.hasMoreElements();) {
            String name = (String) e.nextElement();
            configProps.setProperty(name,
                    substVars(configProps.getProperty(name), name, null, configProps));
        }

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        {
            try
            {
                // don't pass upper-case session settings to bnd as they end up in the manifest
                Properties sessionProperties = m_mavenSession.getExecutionProperties();
                for ( Enumeration e = sessionProperties.propertyNames(); e.hasMoreElements(); )
                {
                    String key = ( String ) e.nextElement();
                    if ( key.length() > 0 && !Character.isUpperCase( key.charAt( 0 ) ) )
                    {
                        properties.put( key, sessionProperties.getProperty( key ) );

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        Xpp3Dom properties = createElement(testSuite, "properties");


        Properties systemProperties = System.getProperties();


        if (systemProperties != null) {
            Enumeration propertyKeys = systemProperties.propertyNames();


            while (propertyKeys.hasMoreElements()) {
                String key = (String) propertyKeys.nextElement();


                String value = systemProperties.getProperty(key);

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            return null;
        }


        // Perform variable substitution for system properties.
        for ( Enumeration e = props.propertyNames(); e.hasMoreElements(); /* EMPTY */ )
        {
            String name = ( String ) e.nextElement();
            props.setProperty( name, substVars( ( String ) props.getProperty( name ) ) );
        }

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                throw new IllegalStateException(
                        "Failed to parse reference definition file [HtmlCharacterEntityReferences.properties]: " + ex.getMessage());
            }


            // Parse reference definition properties.
            Enumeration<?> keys = entityReferences.propertyNames();
            while (keys.hasMoreElements()) {
                String key = (String) keys.nextElement();
                int referredChar = Integer.parseInt(key);
                int index = (referredChar < 1000 ? referredChar : referredChar - 7000);
                String reference = entityReferences.getProperty(key);

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        colors.put("WHITE", WHITE);
        colors.put("BWHITE", BWHITE);
        colors.put("NORMAL", NORMAL);
        colors.put("BOLD", BOLD);


        Enumeration names = regexpSet.propertyNames();
        int ex = 0;
        while (names.hasMoreElements()) {
          String exp = (String) names.nextElement();
          RE re = null;
          try {

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