Java Programming Tutorials

Java programming tutorials with many code examples!

Java time Clock fixed

java.time.Clock.fixed()

The method java.time.Clock.fixed() returns a clock that always returns the same time. This type of clock is mainly useful in testing.

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MongoDB performance tuning tips

MongoDB performance tuning tips

This tutorial is a collection of performance tuning tips for Java developers that would like to improve performance of their Java apps on top of MongoDB.

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Java Util Currency Tutorial

The java.util.Currency class represents a currency. These are the main properties of the class:

  • Currencies are identified by their ISO 4217 currency codes
  • There is never more than one Currency instance for any given currency
  • Get instance of the class using getInstance() methods
  • the class is final and cannot be inherited.

The class declaration is:

public final class Currency
       extends Object
       implements Serializable

Methods inheritance

Objects of this class inherit methods from the following classes:

  • java.lang.Object

Methods of java.util.Currency:

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Java Util Currency toString

java.util.Currency.toString()

The method java.util.Currency.toString() overrides Object.toString() and returns the ISO 4217 currency code of this currency.

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Java Util Currency getSymbol

java.util.Currency.getSymbol()

The method java.util.Currency.getSymbol() gets the symbol of this currency for the default DISPLAY locale or ISO 4217 currency code.

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Java Util Currency getNumericCode

java.util.Currency.getNumericCode()

Currencies are identified by their ISO 4217 currency codes. The method java.util.Currency.getNumericCode() returns the ISO 4217 numeric code of this currency.

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