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Android studio “SDK tools directory is missing”

Following 2 possible solutions will resolve this problem :  Solution1 : To fix the problem, it was required that I list the path to my corporate PAC file by using  Configure -> "Appearance and Behavior" -> System Settings -> HTTP Proxy . I selected "Automatic proxy configuration url:" Delete your  ~/.Android*  folders (losing all of your settings :/). Run Android Studio. It will show you a welcome wizard where it tries to download the SDK again (and fails due to my rubbish internet). Click the X on the wizard window. That will enable you to get to the normal welcome dialog. Go to Settings->Project Defaults->Project Structure and change the Android SDK location to the correct one. Solution 2 : To fix the problem, it was required that I list the path to my corporate PAC file by using  Configure -> "Appearance and Behavior" -> System Settings -> HTTP Proxy . I selected "Automatic proxy configuration url:&quo
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code to Display number exists in String variable,In float format with .00 format

 String ss="120459"+".00";
        double num = Double.parseDouble(ss);//convert String to Double       
        double newNum = Math.round(num*100.0)/100.0;
        ss=Double.toString(newNum);//convert Double to String
        System.out.println ("----------sss-----"+ss); //prints 1001.27
        System.out.println ("------newNum----"+newNum);
        System.out.println ("------floatValue----"+Float.parseFloat(ss));

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