Java 8 Comparator
On java 8 Comparator interface there are new default methods using which compare objects in declarative way.
Java 8 streams collector groupingBy
Suppose we have a List of strings and want to group them by length.
We can use Collectors.groupingBy() for this task.
Java 8 reduce code example
Understanding Java 8 Reduce function
Java 8 List to Arrays
Java 8 convert List to Arrays
Java 8 List to Set
Java 8 convert List to Set
Java 8 easy logging
How java 8 lambda lazy evaluation helps in clean logging code.
Java 8 Streams read file
In Java 8 we can use Files.lines to read file into stream and do manipulations.
Let’s say we want to count the number of unique words in the file.
Java 8: streams from arrays
Stream can be created from arrays using Arrays.stream static method. For example having an array of integers we can convert into IntStream:
Understanding Java 8 streams
Introduction to Java 8 streams and functional programming.
Java 8 Stream – allMatch, anyMatch, noneMatch
Stream API provides facilities to check weather elements in a certain set of data satisfy some conditions. This is done by allMatch, anyMatch, noneMatch methods of stream.
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