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Java 8 Streams: Find Items From One List Based On Values From Another List 1. Overview In this quick tutorial, we’ll learn how to find items from one list based on values from another list using Java 8 Streams. 2. Using Java 8 Streams Let’s start with two entity classes… Continue Reading java-streams-find-list-items
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Check if a Java Array Contains a Value 1. Overview In this article, we’ll look at different ways to search an array for a specified value. We’ll also compare how these perform using JMH (the Java Microbenchmark Harness) to determine which method works best. 2. Setup For our examples, we’ll… Continue Reading java-array-contains-value
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Check If a String Contains a Substring 1. Overview In this tutorial, we’ll review several ways of checking if a String contains a substring, and we’ll compare the performance of each. 2. String.indexOf Let’s first try using the String.indexOf method. indexOf gives us the first position where the substring is… Continue Reading java-string-contains-substring
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Binary Search Algorithm in Java 1. Overview In this article, we’ll cover advantages of a binary search over a simple linear search and walk through its implementation in Java. 2. Need for Efficient Search Let’s say we’re in the wine-selling business and millions of buyers are visiting our application every… Continue Reading java-binary-search
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