This tutorial shows how to write Shell sort program in Java. Shell sort is also an in place sorting algorithm like Bubble sort, Selection sort but it is faster than these algorithms. Shell sort algorithm Shell sort is based on Insertion sort and it improves on it to make sorting…
This tutorial shows how to write Merge sort program in Java. Merge sort is termed as a “divide and conquer algorithm” and it is considered to be more efficient than the simple sort algorithms like selection sort and insertion sort. Merge sort algorithm The algorithm for merge sort is based…
This tutorial shows how to write Insertion sort program in Java. Insertion sort is considered the best among the three simple sorting algorithms, the other two simple sorting algorithms are Bubble sort and Selection sort. Though the time complexity of Insertion sort is also O(n2) but it is considered much…
This post shows how to write Selection sort program in Java. Selection sort is also an in place sorting algorithm like Bubble sort that works by comparing and swapping elements in each pass. Selection sort algorithm Selection sort works as follows- Start with the left most element (index 0) and…
This tutorial shows how to write Bubble sort program in Java. Bubble sort is considered the simplest sorting algorithm out of the three simple sort algorithms, other two being Selection sort and Insertion sort, that work by comparing and swapping elements in each pass. Since there are a large number…
In this post we’ll see how to write a Bubble Sort program as a Generic class in Java which can be used with arrays of different data types. Bubble Sort- Java Generic class In the generic class used for Bubble Sort we use a bounded parameter to restrict the type…
In this post we’ll see how to convert float to int in Java. Considerations while converting float to int in Java While converting float to int two things you need to consider are- Range of float is more than the int, if the float you are trying to convert to…
This post shows how you can convert String to a byte array (Byte[]) in Java. Options for converting String to byte array in Java String class in Java has a getBytes() method to encode String into a sequence of bytes. This method has two overloaded variants too where you can…
This post shows different ways to convert file to byte array in Java. You can use read(byte[] b) method of FileInputStream class which reads up to b.length bytes of data from this input stream into byte array. See example. Java 7 onward you can use Files.readAllBytes() method which reads all…
Sometimes in your Java application you may want to store some data in a temporary file that can safely be deleted when the work is done. Java IO and NIO APIs itself provide methods to create a temporary file in Java. Table of contents Methods in java.io.File class to create…
