this exception or java number null pointer exception always happen to my application. i surrounded try...catch... but yet still appear this.
try{
} catch (Exception ex) {
                    toast = Toast.makeText(Main_ParticularCategoryAllNews.this,
                            Config_ConstantVariable.warnmsg_serverwifidown,
                            Toast.LENGTH_SHORT);
                    toast.setGravity(Gravity.CENTER_VERTICAL
                            | Gravity.CENTER_HORIZONTAL, 0, 0);
                    toast.show();
                }
So how to disable this?
 
     
     
    