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Explains Algorithms with Beautiful Pictures Learn it Easy Better and Well

Easy Learning Data Structures & Algorithms Java (2 Edition)

This book is rich in examples, with beautiful pictures and...

Selective Sorting:

Select the smallest unsorted element remaining in the array and insert it after it has been sorted

Insertion sort is a simple sorting algorithm suited for small data sets. During each iteration, the algorithm

Removes an element from an array
Compares it against the largest value in the array...

Bubble Sorting Algorithm:
the first two elements are compared, if the previous element is larger than the latter element, the position is swapped. Repeat this process, until sorting is completed. ...

Graphic Explanation Quick Sort Algorithm

en.verejava.com/?id=19997472530244

Divide the array into 2 subarrays, then call yourself recursively, sort the subarrays quickly, and continue to the...

String word = "Hello";
word = word.toLowerCase();
for (int i = 0; i < word.length(); i++) {
char ch = word.charAt(i);
if (ch == 'a' || ch == 'e' || ch ==...

1. class name first letter uppercase
2. remove private JFrame frm; becasue class myFrame extends JFrame



package com.tool.util;

import java.awt.Color;
import java.awt.Dimension;

It works but need input 4 char + - * /, if less then 4 char throw Exception




import java.util.Scanner;

public class myCalculator {
public static void main(String[] args) {
...

Need a lot of practice

Recommend good learning book:

Easy Learning HTML CSS Easy Learning Javascript

en.verejava.com

Thanks i see.

change } while(e=="exit"); to } while (!"exit".equals(e));



public static void main(String[] args) {
Scanner input = new Scanner(System.in);
String word = null;
...

remove two line:

System.out.println(combineStatements);

and

addStatements = major + course + instructor + restaurant + hangout;

package com.tool.util;

import java.util.Scanner;

public class MadLibrary {

public static String major, course, instructor, restaurant, hangout, addStatements;
public static Scanner...

public static boolean isDecreasing(int[] arrays){
for (int i = 0; i < arrays.length - 1; i++) {
for (int j = 0; j < arrays.length - 1; j++) {
if (arrays[j] <...

need call answerobj.populateStatementsArray(); first before output = answerobj.getRandomStatement();



// ***** PROBLEM!! - For some reason when I get here, the console just prints "null" I...

you can use String token = in.nextLine(); replace nextInt and nextDouble
and then int value=Integer.parseInt(token) and double value= Double.parseDouble(token)

Here Example:
...

Please type you code in
format it to easy to read.

Java has seen heavy use building enterprise applications, experienced developers to make use of. This means that Java can be used for a large variety of usecases, from small applications and single...

<<Easy Learning Data Structures & Algorithms Java Practice >> good for you

en.verejava.com



package com.tool.util;

import java.util.Arrays;

en.verejava.com/?id=19989480121243

Pyramids



1
1 2
1 2 3
1 2 3 4

Please try restart

1+1:2
2+1:3 2+2:4
3+1:4 3+2:5 3+3:6
4+1:5 4+2:6 4+3:7 4+4:8

you can see
en.verejava.com/?id=19961694923642

en.verejava.com/?id=19961622874441

en.verejava.com/?id=19932689743040



package com.tool.util;

public class RemoveDuplicate {

public static void main(String[] args) {

Java Collection Map HashMap Hashtable



Map map = new HashMap();
map.put("grace", new User("Grace","111111"));
map.put("renia", new User("Renia","222222"));
map.put("david", new...

Java IO FileReader reads files as characters



import java.io.*;
public class TestFileReader {
public static void main(String[] args) {
Reader reader = null;
try {
...