GFG.java

class GFG {  
    public static void main(String[] args) 
    {  
        try {  
            String str = args.length>0? args[0]: ""; 
            // returns the double value 
            // represented by the string argument 
            double val = Double.parseDouble(str); 
  
            // prints the double value 
            System.out.println("Value = " + val); 
        } 
        catch (Exception e) { 
            System.out.println(e); 
        } 
    } 
}