Interfaces are collections of method signatures. A interface type can hold any value that implements those methods. The empty interface is an interface type that specifies zero methods. A type assertion provides access to an interface underlying concrete value. Two interfaces are equal if they have equal concrete values and identical dynamic types, or if both are nil.

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In Golang there a are two libraries for generating random integers, one is a pseudo-random number generator (package math/rand) and the second one is cryptographically secure random number generator (package crypto/rand)

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How to create Java Custom Annotation. A simple example of creating Annotations in Java and usage by calling the Reflection API.

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How to generate UUID / GUID in Java using java.util.UUID class, UUID.randomUUID() method.

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How to generate JAXB classes with xjc. Command line: xjc -d src -p com.admfactory.client schema.xsd

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How to generate a fixed length random string using Golang using a dictionary of chars.

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