log4j.properties basic examples. Output to the console and to the file.

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Log4j Logging Levels explained. For the standard levels, this is the order: ALL

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How to send emails using JavaMail. Simple example using a gmail account and proxy settings if needed.

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How to get input from Java Console. Examples using System.console, Scanner and BufferedReader + InputStreamReader.

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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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