Core java

The FileReader class of java.io package provides a seamless and easy-to-use way to read and analyse the contents of a file using Java. The FileReader class, works similar to the FileInputStream class because it reads the file data as a stream. However, unlike the latter which reads files as a stream of bytes, FileReader reads […]

If you want to practice data structure and algorithm programs, you can go through 100+ data structure and algorithm programs. In this post, we will see how to find the longest common substring in java. Program Given two String, find longest common substring. For example: String 1: Java2blog String 2: CoreJavaTutorial Longest common subString is: […]

In this post, we will see how to print the maximum occurring character in a String. Problem Print maximum occurring character in a String For example: String 1: java2blog tutorial Character: a has occurred maximum times in String: 3 ———————- String 2: This is test message Character: s has occurred maximum times in String: 5 […]

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If you want to practice data structure and algorithm programs, you can go through 100+ java coding interview questions. In this post, we will see how to find Intersection of two linked lists. Problem Given two singly linked lists, find if two linked lists intersect. If they intersect, find intersection point. Solution Here is simple algorithm to […]

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In this post, we will see how to convert Java Collection to List. There are many ways to do it, we will see two ways here. Using ArrayList constructor ArrayList(Collection<? extends E> c) Above ArrayList‘s constructor creates a list having the elements of the specified collection, in the order they are returned by the collection’s […]

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Shuffle method is to permute passed list with default or specified randomness. Syntax public static void shuffle(List<?> list) or public static void shuffle(List<?> list,Random rnd) Example : Let’s see both the function with the help of example. package org.arpit.java2blog; import java.util.Arrays; import java.util.Collections; import java.util.List; import java.util.Random; public class ShuffleMain { public static void main(String[] args) […]