java-8 Archives - Page 10 of 11

How to convert a Java 8 Stream to an Array?

What is the easiest/shortest way to convert a Java 8 Stream into an array? 10 s 10 The easiest method is to use ...

April 17, 2022
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Java 8 List into Map

I want to translate a List of objects into a Map using Java 8’s streams and lambdas. This is how I would write ...

April 15, 2022
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:: (double colon) operator in Java 8

I was exploring the Java 8 source and found this particular part of code very surprising: //defined in IntPipeline.java @Override public final OptionalInt ...

April 15, 2022
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How to install Java 8 on Mac

Editors note: This question was asked in 2014, and the answers may be outdated. I want to do some programming with the latest ...

April 14, 2022
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Java 8 Iterable.forEach() vs foreach loop

The better practice is to use for-each. Besides violating the Keep It Simple, Stupid principle, the new-fangled forEach() has at least the following ...

April 8, 2022
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What’s the difference between map() and flatMap() methods in Java 8?

Both map and flatMap can be applied to a Stream<T> and they both return a Stream<R>. The difference is that the map operation ...

April 8, 2022
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typeof in Java 8

You can use the getClass() method to get the type of the object you are using: Object obj = null; obj = new ArrayList<String>(); System.out.println(obj.getClass()); ...

April 7, 2022
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:: (double colon) operator in Java 8

Usually, one would call the reduce method using Math.max(int, int) as follows: reduce(new IntBinaryOperator() { int applyAsInt(int left, int right) { return Math.max(left, right); } }); That ...

April 7, 2022
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Java

IT Nursery

LocalDate to java.util.Date and vice versa simplest conversion?

Is there a simple way to convert a LocalDate (introduced with Java 8) to java.util.Date object? By ‘simple’, I mean simpler than this ...

April 7, 2022
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Where to get the tools.jar to use with the Java 8 jdk early release

April 6, 2022
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