How to create Null Object Pattern in Java. Simple example using object and null object class implementation.

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How to Format USB Flash Drive to FAT32 in macOS in simple steps using Disk Utility.

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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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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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In Java, autoboxing is the automatic conversion between the primitive types and their corresponding object wrapper classes. Unboxing is the other way around.

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