Eclipse: how to read images from resources

Create resources folder

1. create "res" folder via "Package Explorer".
2. right click on "res" folder -> "Build Path" -> "Use as Source Folder". "res" will  be root of your resource.
   
3. create "images" folder inside "res" folder. Copy your images into this folder. Path your file becomes "/images/example.jpg".
   

Accessing images from the "images" folder, use this piece of code into your java source code:

        String cName = "example.jpg";
        String sFName = "/images/"+cName;
        BufferedImage img = ImageIO.read(this.getClass().getResource(sFName));

References:

https://stackoverflow.com/questions/31152233/opening-image-asset-java-jdk-8

windows: disable fast start for multiple OS (dual boot)

Hibernation saves an image of your work and shuts down your computer or put your computer into sleep mode.

Fast Startup only saves an image of the system kernel and loaded drivers to reduce boot time.

Fast Startup may not suitable for System:

1. multiple os except you never access/share data between multiple os.
2. maintenance
3. hardware change

Step to disable fast startup 

1. Search -> Choose a power plan -> Choose what the power buttons do -> Change settings that are currently unavailable
2. uncheck "Turn on fast start (recommendation)"
3. save change and restart

 

Debian: using Festival to generate voice from text (Text To Speech/TTS) - AI TTS

folder voice

$ ls /usr/share/festival/voices/english/

Using command interpreter:

$ festival
...
festival> (voice.list)
(kal_diphone)
festival> (SayText "Hello")
#<Utterance 0x7f8747f99ef0>

festival> (quit)

Load text from file output direct to sound

$ festival --tts ./hello.txt 

Load text from file output direct to file

$ text2wave ./hello.txt -o text1.wav

java 17: shuffle 52 playing cards and sort the order base on bridge playing game

This is the code to shuffle 52 playing cards for 4 players and re order each hand cards. I provide to order card base on trump (at right side).

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Random;

public class Test {
    /*
     * TODO how to repesent card
     */
    public final static String[] S_CLUB = {
        "2C",
        "3C",
        "4C",
        "5C",
        "6C",
        "7C",
        "8C",
        "9C",
        "10C",
        "JC", //JC
        "QC", //QC
        "KC", //KC
        "AC"  //AC
    };

    public final static String[] S_DIAMOND = {
        "2D",
        "3D",
        "4D",
        "5D",
        "6D",
        "7D",
        "8D",
        "9D",
        "10D",
        "JD",
        "QD",
        "KD",
        "AD"
    };
    
    public final static String[] S_HEART = {
        "2H",
        "3H",
        "4H",
        "5H",
        "6H",
        "7H",
        "8H",
        "9H",
        "10H",
        "JH",
        "QH",
        "KH",
        "AH"
    };
    
    public final static String[] S_SPADE = {
        "2S",
        "3S",
        "4S",
        "5S",
        "6S",
        "7S",
        "8S",
        "9S",
        "10S",
        "JS",
        "QS",
        "KS",
        "AS"
    };
    
    public static void main(String[] args) {

        long startTime = System.nanoTime();
        shuffleCard();
        long endTime = System.nanoTime();
        System.out.println("North");
        for (int i=0;i<13;i++) {
            System.out.print(north[i]+" ");
        }
        System.out.println();
        System.out.println("After Sorting");
        ArrayList<String> tmp = sortEnd2Begin(north);
        tmp.forEach((String myCard) ->{
            System.out.print(myCard+" ");
        });
        System.out.println();
        

        System.out.println("EAST");
        for (int i=0;i<13;i++) {
            System.out.print(east[i]+" ");
        }
        System.out.println();
        System.out.println("After Sorting");
        tmp = sortEnd2Begin(east);
        tmp.forEach((String myCard) ->{
            System.out.print(myCard+" ");
        });
        System.out.println();
        
        System.out.println("South");
        for (int i=0;i<13;i++) {
            System.out.print(south[i]+" ");
        }
        System.out.println();
        System.out.println("After Sorting");
        tmp = sortEnd2Begin(south);
        tmp.forEach((String myCard) ->{
            System.out.print(myCard+" ");
        });
        System.out.println();
        
        System.out.println("West");
        for (int i=0;i<13;i++) {
            System.out.print(west[i]+" ");
        }
        System.out.println();
        System.out.println("After Sorting");
        tmp = sortEnd2Begin(west);
        tmp.forEach((String myCard) ->{
            System.out.print(myCard+" ");
        });
        System.out.println();

        System.out.println((endTime-startTime)%1000000+" mili"); // time_ms % 1E+3 + " MicroSeconds, "


    }
    
    static String[] north = new String[13];
    static String[] east = new String[13];
    static String[] south = new String[13];
    static String[] west = new String[13];
    
    private static void shuffleCard() {
        //TODO
        ArrayList<String> cards = new ArrayList<>();
        List<String> listCard = Arrays.asList(S_CLUB);
        cards.addAll(listCard);
        listCard = Arrays.asList(S_DIAMOND);
        cards.addAll(listCard);
        listCard = Arrays.asList(S_HEART);
        cards.addAll(listCard);
        listCard = Arrays.asList(S_SPADE);
        cards.addAll(listCard);
        //System.out.println("card number: "+cards.size()); // debug
        
        cards = shuffle(1,cards);
        
        //System.out.println("Distribution "+cards.size());
        int topPosition = cards.size()-1;
        for (int i=0;i<13;i++) {
            //System.out.println("north "+i+" "+topPosition);  // debug
            String tmp = cards.get(topPosition);
            cards.remove(topPosition);
            topPosition --;
            north[i] = tmp;
            //System.out.println("east "+i+" "+topPosition);  // debug
            tmp = cards.get(topPosition);
            cards.remove(topPosition);
            topPosition --;
            east[i] = tmp;
            //System.out.println("south "+i+" "+topPosition);  // debug
            tmp = cards.get(topPosition);
            cards.remove(topPosition);
            topPosition --;
            south[i] = tmp;
            //System.out.println("west "+i+" "+topPosition);  // debug
            tmp = cards.get(topPosition);
            cards.remove(topPosition);
            topPosition --;
            west[i] = tmp;    
        }
        
        
    }
    
    static Random rand = new Random();
    
    private static ArrayList<String> shuffle(int numSuffle, ArrayList<String> cards) {
        //System.out.println("Suffle: "+numSuffle);  // debug
        Collections.shuffle(cards, rand);
        //System.out.println("Card size "+cards.size()); // debug
        
        if (numSuffle>0) {
            shuffle(numSuffle-1, cards);
        }
        
        return cards;
    }
    
    private static ArrayList<String> sortEnd2Begin(String[] myCards) {
        ArrayList<String> myNewCards = new ArrayList<>();
        myNewCards.add(myCards[0]);
        for (int i=1;i<myCards.length;i++) {
            // loop for unordered myCards
            String card2Sort = myCards[i];
            for (int j=0;j<myNewCards.size();j++) {
                // loop for ordered myNewCards
                // find until card2Sort equal or bigger then existing list
                String cardIterate = myNewCards.get(j);
                //int posCard = beforeOrAfter(card2Sort, cardIterate, 0, iterMax);
                int posCard = beforeOrAfter2(card2Sort, cardIterate);
                if (posCard<=0) {
                    myNewCards.add(j, card2Sort);
                    break;
                } else {
                    //System.out.println(j); // debug
                    if (j+1==myNewCards.size()) {
                        // end of list
                        myNewCards.add(card2Sort);
                        break;
                    }
                }
            }

        }
        return myNewCards;
    }
    
    
    /* -1 wordA before wordB
     * 0 wordA equal wordB
     * 1 wordA after wordB
     * suite order less C D H S higher
     * value suit  less 0 1 2 3 4 5 6 7 8 9 A J K Q
     * map 10 to A
     *      J to B
     *      Q to C
     *      K to D
     *      A to E
     */
    private static int beforeOrAfter2(String wordA, String wordB) {
        //System.out.print("word "+wordA+" "+wordB+" "); // debug
        char charA = wordA.charAt(wordA.length()-1);
        char charB = wordB.charAt(wordB.length()-1);
        //System.out.println(wordA+" "+wordB+" End "+charA+" "+charB+" "); // debug
        if (charA<charB) {
            return -1;
        } else if (charA>charB) {
            return 1;
        } else {
            // equal
            charA = wordA.charAt(wordA.length()-2);
            charB = wordB.charAt(wordB.length()-2);
            // mapping charA to correct order
            if (charA=='0') {
                charA='A';
            } else if (charA=='J') {
                charA='B';
            } else if (charA=='Q') {
                charA='C';
            } else if (charA=='K') {
                charA='D';
            } else if (charA=='A') {
                charA='E';
            }
            // mapping charB to correct order
            if (charB=='0') {
                charB='A';
            } else if (charB=='J') {
                charB='B';
            } else if (charB=='Q') {
                charB='C';
            } else if (charB=='K') {
                charB='D';
            } else if (charB=='A') {
                charB='E';
            }
            
            //System.out.println(" First "+charA+" "+charB); // debug
            if (charA<charB) {
                return -1;
            } else if (charA>charB) {
                return 1;
            }
        }
        
        return 0;
    }

    public static ArrayList<String> sortCardsWithTrump(ArrayList<String> myCards, char trump) {
        ArrayList<String> myNewCards = new ArrayList<>();
        myNewCards.add(myCards.get(0));
        for (int i=1;i<myCards.size();i++) {
            // loop for unordered myCards
            String card2Sort = myCards.get(i);
            for (int j=0;j<myNewCards.size();j++) {
                // loop for ordered myNewCards
                // find until card2Sort equal or bigger then existing list
                String cardIterate = myNewCards.get(j);
                //int posCard = beforeOrAfter(card2Sort, cardIterate, 0, iterMax);
                int posCard = beforeOrAfter2Trump(card2Sort, cardIterate, trump);
                if (posCard<=0) {
                    myNewCards.add(j, card2Sort);
                    break;
                } else {
                    //System.out.println(j); // debug
                    if (j+1==myNewCards.size()) {
                        // end of list
                        myNewCards.add(card2Sort);
                        break;
                    }
                }
            }

        }
        return myNewCards;
    }
    
    /* -1 wordA before wordB
     * 0 wordA equal wordB
     * 1 wordA after wordB
     * NO TRUMP CDHS
     * TRUMP Map to Z for trump
     * suite order less C D H S higher
     * value suit  less 0 1 2 3 4 5 6 7 8 9 A J K Q
     * map 10 to A
     *      J to B
     *      Q to C
     *      K to D
     *      A to E
     */
    private static int beforeOrAfter2Trump(String wordA, String wordB, char trump) {
        //System.out.print("word "+wordA+" "+wordB+" "); // debug
        char charA = wordA.charAt(wordA.length()-1);
        char charB = wordB.charAt(wordB.length()-1);
        //System.out.println(wordA+" "+wordB+" End "+charA+" "+charB+" "); // debug
        // remap char for TRUMP
        // mapping charA to correct order
        if (charA==trump) {
            charA='Z';
        }
        // mapping charB to correct order
        if (charB==trump) {
            charB='Z';
        }
        if (charA<charB) {
            return -1;
        } else if (charA>charB) {
            return 1;
        } else {
            // equal
            charA = wordA.charAt(wordA.length()-2);
            charB = wordB.charAt(wordB.length()-2);
            // mapping charA to correct order
            if (charA=='0') {
                charA='A';
            } else if (charA=='J') {
                charA='B';
            } else if (charA=='Q') {
                charA='C';
            } else if (charA=='K') {
                charA='D';
            } else if (charA=='A') {
                charA='E';
            }
            // mapping charB to correct order
            if (charB=='0') {
                charB='A';
            } else if (charB=='J') {
                charB='B';
            } else if (charB=='Q') {
                charB='C';
            } else if (charB=='K') {
                charB='D';
            } else if (charB=='A') {
                charB='E';
            }
           
            //System.out.println(" First "+charA+" "+charB); // debug
            if (charA<charB) {
                return -1;
            } else if (charA>charB) {
                return 1;
            }
        }
        return 0;
    }

}

 

java 17: sort 2 strings from end to begin of word

This code will sort string array and return a new arraylist with order word (ascending), but ordered done from end of each word. This code work like sorting file name in file manager.

Source code:

public class WordC {
    // sort from end to begin

    public static void main(String[] args) {
                String[] sTest = {"4H", "5H", "8C", "8D", "9H", "9D", "AC", "6S", "5D", "6D", "KD", "10C", "AD" };
       
        for (int i=0;i<13;i++) {
            System.out.print(sTest[i]+" ");
        }
        System.out.println();
        System.out.println("Sorting");
        ArrayList<String> tmp = sortEnd2Begin(sTest);
        tmp.forEach((String myCard) ->{
            System.out.print(myCard+" ");
        });
        System.out.println();
    }
       
    private static ArrayList<String> sortEnd2Begin(String[] myCards) {
        ArrayList<String> myNewCards = new ArrayList<>();
        myNewCards.add(myCards[0]);
        for (int i=1;i<myCards.length;i++) {
            // loop for unordered myCards
            String card2Sort = myCards[i];
            for (int j=0;j<myNewCards.size();j++) {
                // loop for ordered myNewCards
                // find until card2Sort equal or bigger then existing list
                String cardIterate = myNewCards.get(j);
                int iterMax = card2Sort.length();
                if (card2Sort.length() > cardIterate.length()) {
                    iterMax = cardIterate.length();
                }
                int posCard = beforeOrAfter(card2Sort, cardIterate, 0, iterMax);
                if (posCard==0 || posCard<0) {
                    myNewCards.add(j, card2Sort);
                    break;
                } else {
                    // TODO
                    //System.out.println(j); // debug
                    if (j+1==myNewCards.size()) {
                        // end of list
                        myNewCards.add(card2Sort);
                        break;
                    }
                }
            }

        }
        return myNewCards;
    }
       
    // -1 wordA before wordB
    // 0 wordA equal wordB
    // 1 wordA after wordB
    private static int beforeOrAfter(String wordA, String wordB, int iterX, int iterMax) {
        //System.out.println(wordA+" "+wordB+" "+iterX+" "+iterMax);
        int inA = wordA.length()-1-iterX;
        int inB = wordB.length()-1-iterX;
        char cA = wordA.charAt(inA);
        char cB = wordB.charAt(inB);
        int retValue = 0;
        if (iterX+1==iterMax) {
            // we reach max recursive {
            //System.out.println(iterX+" "+iterMax+" "+cA+" "+cB); // debug
            if (cA==cB) {
                //System.out.println("Debug"); // debug
                if (wordA.length()<wordB.length())  {
                    retValue = -1;
                } else if (wordA.length()>wordB.length())  {
                    retValue = 1;
                } else {
                    retValue = 0; // equal letters and length
                }
            } else if (cA<cB) {
                //retValue = -1;  // ori
            } else if (cA>cB) {
                retValue = 1; // ori
            }
        } else {
            if (cA<cB) {
                //System.out.println(cA+" < "+cB+" "+(cA < cB)); // debug
                retValue = -1; // ori
            } else if (cA>cB) {
                //System.out.println(cA+" > "+cB+" "+(cA > cB)); // debug
                retValue = 1; // ori

            } else {
                //System.out.println(cA+" = "+cB+" "+(cA == cB)); // debug
                retValue = beforeOrAfter(wordA, wordB, iterX+1, iterMax);
            }
        }
        return retValue;
    }

}