Blog: mkyong (Yong Mook Kim) |
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206 blogs
updated: 3 min. ago
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In Java 8, we can use StreamSupport.stream to convert an Iterator into a Stream. // Iterator -> Spliterators -> Stream Stream stream = Strea...
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A few of Java Iterator and ListIterator examples. 1. Iterator 1.1 Get Iterator from a List or Set, and loop over it. JavaIteratorExample1a.j...
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Java 14 reached General Availability on 17 March 2020, download Java 14 here. Some new features in Java 14. JEP 305: Pattern Matching for in...
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Typically, we use Arrays.asList or the new Java 9 List.of to create a List. However, both methods return a fixed size or immutable List, it ...
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The java.util.Arrays$ArrayLis t is a nested class inside the Arrays class. It is a fixed size or immutable list backed by an array. Arrays.j...
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This article shows you three algorithms to find duplicate elements in a Stream. Set.add() Collectors.groupingBy Collections.frequency At the...
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In Java 8, we can use reduce or skip to get the last element of a Stream. 1. Stream.reduce Java8Example1.java package com.mkyong; import jav...
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Review the Comparator class; it has two abstract methods, why it can be a function interface? Comparator.java package java.util; @Functional...
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This article shows you how to use the JDK1.5 String.format() and Apache Common Lang to left or right pad a String in Java. 1. String.format ...
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This example shows you how to display a percentage % in String.format. JavaStringFormat1.java package com.mkyong; public class JavaStringFor...
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