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  4. Use ActionScript to declare two Label controls

    xmlns:mx="library://ns.adobe.com/flex/mx"
    xmlns:s="library://ns.adobe.com/flex/spark"
    creationComplete="initLabels()">
    
        
    
    
         
        import mx.controls.Label; 
        public var label1:Label; 
        public var label2:Label; 
        public function initLabels():void { 
            label1 = new Label(); 
            label1.text = "Change Me"; 
            label2 = new Label(); 
            label2.text = "Change Me"; 
            addElement(label1); 
            addElement(label2); 
        } 
        public function changeLabel(s:String):void { 
            s = "label" + s; 
            this[s].text = "Changed"; 
        } 
      
    
            label="Change Other Label" />
            label="Change Other Label" />