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Java-Optional
15 posts
Recent Articles
Popular Articles
Optional toString() method in Java with examples
Last Updated: 30 July 2019
The toString() method of java.util.Optional class in Java is used to get the string representation of this Optional instance. Syntax:public String toString()Parameters: Th...
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Java
Java - util package
Java-Functions
Java-Optional
Optional empty() method in Java with examples
Last Updated: 30 July 2019
The empty() method of java.util.Optional class in Java is used to get an empty instance of this Optional class. This instance do not contain any value.Syntax:public static...
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Java
Java - util package
Java-Functions
Java-Optional
Optional of() method in Java with examples
Last Updated: 30 July 2019
The of() method of java.util.Optional class in Java is used to get an instance of this Optional class with the specified value of the specified type. Syntax:public static ...
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Java
Java - util package
Java-Functions
Java-Optional
Optional ofNullable() method in Java with examples
Last Updated: 30 July 2019
The ofNullable() method of java.util.Optional class in Java is used to get an instance of this Optional class with the specified value of the specified type. If the specif...
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Java
Java - util package
Java-Functions
Java-Optional
Optional filter() method in Java with examples
Last Updated: 30 July 2019
The filter() method of java.util.Optional class in Java is used to filter the value of this Optional instance by matching it with the given Predicate, and then return the ...
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Java
Java - util package
Java-Functions
Java-Optional
Optional get() method in Java with examples
Last Updated: 30 July 2019
The get() method of java.util.Optional class in Java is used to get the value of this Optional instance. If there is no value present in this Optional instance, then this ...
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Java
Java - util package
Java-Functions
Java-Optional
Optional isPresent() Method in Java
Last Updated: 24 April 2025
The isPresent() method of the java.util.Optional class is used to check if a value is present in the Optional object. If there is no value present in this Optional instanc...
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Java
Java - util package
Java-Functions
Java-Optional
Optional stream() method in Java with examples
Last Updated: 30 July 2019
The stream() method of java.util.Optional class in Java is used to get the sequential stream of the only value present in this Optional instance. If there is no value pres...
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Java
Java - util package
Java-Functions
Java-Optional
Optional orElse() method in Java with examples
Last Updated: 30 July 2019
The orElse() method of java.util.Optional class in Java is used to get the value of this Optional instance, if present. If there is no value present in this Optional insta...
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Java
Java - util package
Java-Functions
Java-Optional
Optional orElseGet() Method in Java
Last Updated: 14 April 2025
TheorElseGet()method ofjava.util.Optional classin Java is used to get the value of this Optional instance if present. If there is no value present in this Optional instanc...
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Java
Java - util package
Java-Functions
Java-Optional
Optional orElseThrow() method in Java with examples
Last Updated: 30 July 2019
The orElseThrow() method of java.util.Optional class in Java is used to get the value of this Optional instance if present. If there is no value present in this Optional i...
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Java
Java - util package
Java-Functions
Java-Optional
Optional equals() method in Java with Examples
Last Updated: 30 July 2019
The equals() method of java.util.Optional class in Java is used to check for equality of this Optional with the specified Optional. This method takes an Optional instance ...
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Java
Java - util package
Java-Functions
Java-Optional
Optional hashCode() method in Java with examples
Last Updated: 30 July 2019
The hashCode() method of java.util.Optional class in Java is used to get the hashCode value of this Optional instance. If there is no value present in this Optional instan...
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Java
Java - util package
Java-Functions
Java-Optional
Optional or() method in Java with examples
Last Updated: 30 July 2019
The or() method of java.util.Optional class in Java is used to get this Optional instance if any value is present. If there is no value present in this Optional instance, ...
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Java
Java - util package
Java-Functions
Java-Optional
Optional ifPresentOrElse() method in Java with examples
Last Updated: 30 July 2019
The ifPresentOrElse(Consumer, Runnable) method of java.util.Optional class helps us to perform the specified Consumer action the value of this Optional object. If a value ...
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Java
Java - util package
Java-Functions
Java-Optional
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