Find the largest rectangle in Matrix (Java)
Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing all ones and return its area. Java Solution public int maximalRectangle(char[][] matrix) { int m…
Find the largest square in Matrix (Java)
Given a 2D binary matrix filled with 0's and 1's, find the largest square containing all 1's and return its area. For example, given the following matrix: 1101 1101 1111…
JDK 14: The new features in Java 14
Switch expressions and NVM-supporting file mapping byte buffers are slated for the next version of standard Java due in 2020 Java 13 only just shipped September 17, but work has already…
Eclipse Jakarta EE arrives
The Eclipse Foundation has released the Jakarta EE 8 platform and web profile specifications, which constitute Eclipse’s implementation of Java Enterprise Edition 8. The group also made available a Jakarta…
Kotlin 1.4 to improve null-check capabilities
The Kotlin Foundation also released Kotlin 1.3.50, which focuses on APIs and NPM dependencies Kotlin 1.4, a planned upgrade to the statically typed JVM language created by JetBrains, is set to…
OpenJDK proposal would speed up Java G1 garbage collector
The new -XX:-G1UseConcRefinement flag would turn off concurrent refinement and allow G1 to use a throughput post-write barrier Java’s G1 garbage collector would benefit from greater throughput and reduced CPU usage through…
Spring’s RequestBody and ResponseBody Annotations
@RequestBody and @ResponseBody annotations are used to convert Body of HTTP request and response to Java class object. Both these annotations will use registered HTTP message converters in the process of converting/mapping…
Java LinkedHashMap Tutorial
Java LinkedHashMap is a hash table and doubly linked List based implementation of Java’s Map interface. It extends the HashMap class which is another very commonly used implementation of the Map interface The HashMap class doesn’t guarantee any…
Stack in Java
A Stack is a Last In First Out (LIFO) data structure. It supports two basic operations called push and pop. The push operation adds an element at the top of the stack, and the pop operation…
Java 8 and Stream
Java 8 and streams: A match made in heaven, but it can be a little overwhelming. In this post, we take an in-depth look at this combination with some examples.…