Greedy Algorithms in JAVA

Breadth First Search Implementation in Java

Breadth First Search Implementation in Java For Graph Class Design and DFS implementation please refer to below link:- depth-first-search-implementation-in-java /* 1. Pick a vertex. 2. Get Adjacent Vertex. 3. Insert in queue ( at tail) 4. Remove vertex from queue( head) 5. Do until no vertex left in a queue. */ void searchBFS () { //this is how we define queue using LinkedList Queue < Character > queue = new LinkedList < Character >(); queue . add ( vertexlist [ 0 ]. label ); while (! queue . isEmpty ()) { //element at head (Function in main graph class please use above link) ArrayList adjvertex = getNeighbours ( queue . peek ()); System . out . println ( queue . peek ()); //element removed at head queue . remove (); if ( adjvertex != null ) { for ( int i = 0 ; i < adjvertex . size (); i ++) { //element added at tail queue . add

Selection Sort in JAVA

What is selection sort? It is a sorting technique that is based on the partitioning of array into two parts, sorted and unsorted. The process is:- 1) Find minimum element in unsorted array. 2) Swap the element at the end of sorted array. when i=0 we don't have any sorted array so element will be replaced from first element later the sorted array end will growas the index. Steps:- underline elements are sorted array, the length is increasing with each minimum element added at the end. minimum element11 11 25 12 22 64 minimum element12 11 12 25 22 64 minimum element22 11 12 22 25 64 minimum element25 11 12 22 25 64 minimum element64 11 12 22 25 64 Program:- package sorting ; public class SelectionSort { //function to print array public static void print ( int [] arr ) { for ( int i = 0 ; i <= arr . length - 1 ; i ++) System . out . print ( " " + arr [ i ]); System . out . printl

Concepts of Computer Science

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