How to delete directory in Java using File.delete() method. Recursive delete is applied if the directory is not empty.

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How to send GET and POST requests using standard HttpURLConnection class from Java. Simple examples for both methods.

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How to convert String to double in Java using Double.parseDouble and Double.valueOf methods. Simple example provided.

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How to convert String to float in Java using Float.parseFloat and Float.valueOf methods. Simple example provided.

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Simple example how to convert a String object InputStream object in Java using ByteArrayInputStream class.

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This tutorial will show you how display double in 2 decimal points in Java using String format method and DecimalFormat class.

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