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Compress a String

package com.sbs.java8.praticse; public class StringCompression { public StringCompression() { // TODO Auto-generated constructor stub } public static void main(String[] args) { System.out.println(compressString("aaaabbbbbccccAAAAccccccccdefg")); } public static String compressString(String str) { //String str = "aaaabbbbbcccc"; char[] charArray = str.toCharArray(); String compressedString = ""; int i = 0; while (i < charArray.length) { int counter = 1; int j = i + 1; while (j < charArray.length && charArray[i] == charArray[j]) { counter++; j++; i++; } compressedString = compressedString + charArray[i] + counter; i++; } //System.out.println(compressedString); String output =(compressedString.length() > charArray.length)? str: compressedString; return output; } }

Spring Reactive Stack

Basic Sortings (Bubble, Selection and Insertion Sorts)

public class BasicSortings { public static void main(String[] args) { int temp; int iterationCount = 0; int array[] = { 2, 33, 29, 30, 21, 98}; //Bubble sort or Simple sort for (int i = 0; i < array.length - 1; i++) { for (int j = i + 1; j < array.length; j++) { if (array[i] > array[j]) { temp = array[i]; array[i] = array[j]; array[j] = temp; } iterationCount++; } } System.out.println("Bubble Sort Big 0(n) --> " + iterationCount); for (int s = 0; s < array.length; s++) { System.out.print(array[s] + "\t"); } System.out.println("\n"); System.out.println("\n"); //Selection Sort iterationCount =0; int sortPointer=0; for (int i = sortPointer; i < array.length; i++) { for(int j=i+1;j< array.length;j++) { if(array[i] > array[j]) { temp = array[i]; array[i] = array[j]; array[j] = temp;