And this prints numbers around 48-58 as x in the log. I'm dumbfounded as to why it wouldn't give me the right characters from the String pi. Thank you for your help in advance.

Edit: I realized the int(pi.charAt(i)) is not working, as this results in the utf-8 character code of the given number from 0 to 9, which are 48-57. Of course, I can work around this, but would still be best to see how this should be done properly.

I have written the following function, which formats text stored in a field of Strings (Textfeld) and stores the result in a new field (Textzeilen). It works fine in Processing, but once I try to execute it in a browser (using processing.js), it crashes with the error message "SyntaxError: missing ) after argument list".

void ladeText(String datei)
{
  Textfeld = loadStrings(datei);

  Textzeilen = new String[2000];

  int i = 0, j = 0, k = 0;
  int breite = (int)(xt2-xt1-50);
  textFont(atari, 18);
  Textzeilen[0] = new String();
  textAnzMax = 0;
  do
  {
    char c = Textfeld[i].charAt(j);

    if(textWidth(Textzeilen[k] + c) < breite)
    {
      Textzeilen[k] += c;
      j++;
    }
    else
    {
      int l = 0;
      while((int)Textfeld[i].charAt(j) != (int)' ') {j--; l++;}
      Textzeilen[k] = Textzeilen[k].substring(0, Textzeilen[k].length() - l);
      j++;
      k++;
      Textzeilen[k] = new String();
      textAnzMax++;
    }

    if(j==Textfeld[i].length()) 
    {
      if(i>=Textfeld.length-1) break;
      j = 0;
      do
      {
        i++;
      }
      while(Textfeld[i].length() == 0);

      k++;
      Textzeilen[k] = new String();
      k++;
      Textzeilen[k] = new String();
      textAnzMax+=2;
    }
    //if(k>=Textzeilen.length) Textzeilen = (String[])expand(Textzeilen);
  }
  while(true);

}

I strongly suspect it has something to do with the "char" datatype which doesn't exist in JS.

I am starting with processing and I am a bit lost. I would like to display some text in a defined rectangle and then, following the order of reading (upper left corner to bottom right corner), make each letter move randomly, as the same time as lowering its opacity until total dissapearing. I suppose it's possible but I have no idea wich function I should use !

Thank you very much for your help ! :)

Any ideas?

String str = "abbaabbaa abb aabbaaab baaab";
int let  = 0;
int wordsNum = 1;

int t = 0;

int[] wordsLength;

float kerning = 0;
float leading = 0;
float charLocation = 0;
float lineLocation = 0;

float horMargin = 100;
float vertMargin = 100;

float fontHeight = 30;
float fontWidth = 40;


import processing.video.*;
Movie Alef;
Movie Bet;
Movie Gimel;
Movie Dalet;
Movie Hey;
Movie Vav;

public void setup() {
  size(1200, 900);

  // finding out how many words are there    (important for the wordsLength array)

  for (int i = 0; i<str.length(); i++) {
    if (str.charAt(i)==' ') {
      wordsNum++;
    }
  }
  println("number of words is: ", wordsNum);


  int letCount = 0;

  wordsLength = new int[wordsNum];
  for (int i = 0; i<str.length(); i++) {
    if (str.charAt(i)==' ') {
      wordsLength[t]=letCount;
      letCount=0;
      t++;
    } else {
      letCount++;
    }
  }
  println(wordsLength);

  //alef = loadImage("א.jpg");
  //bet = loadImage("ב.jpg");

  Alef = new Movie(this, "a.wmv");
  Alef.loop();
  Bet = new Movie(this, "b.wmv");
  Bet.loop();


  t=0;
}

void draw() {

  for (int let = 0; let < str.length(); let++) {

    if (str.charAt(let)=='a') {
      image(Alef, width-horMargin+charLocation, vertMargin+lineLocation, fontWidth, fontHeight);
      println("a");
    };
    if (str.charAt(let)=='b') {
      image(Bet, width-horMargin+charLocation, vertMargin+lineLocation, fontWidth, fontHeight);
      println("b");
    };


    // Character Location

    charLocation = charLocation - fontWidth - kerning;
    //println(charLocation);


    // checking if it's a new word

    if (str.charAt(let)==' ' && t < wordsNum) {


      // creatng a new line

      if (width-horMargin+charLocation-wordsLength[t]*fontWidth < horMargin) {
        charLocation = 0;
        lineLocation = lineLocation + fontHeight + leading;
      }
      t++;
    }



    //   if (width-horMargin+charLocation < horMargin){

    //   }
  }
}

void movieEvent(Movie m) {
  m.read();
}

I'm using the below function to display text, but I'm displaying it on a letter-by-letter basis.

    void displayText(String message, int x, int y, int w){

      int h = 0;

      for (int i = 0; i < message.length(); i++) {
        if(message.charAt(i) == (' ') && x > w-50){
            h += 8;
        }
      }

      tbTranslate();

      rotateY(radians(6));
      fill(50,160);
      noStroke();
      rectMode(CORNER);
      rect((x-40)-((x+80)/2), (y-40)-((y+20)/2), w+80, h+60);
      fill(255);
      translate(-30,-30,1);
      textSize(32);
      textFont(font);

      for (int i = 0; i < message.length(); i++) { 
        text(message.charAt(i), x+textBoxX/2, y-(textBoxY/2-40));
        x += textWidth(message.charAt(i));
        if(message.charAt(i) == (' ') && x > w-50){
            y += 32;
            x=0;
        }
      }
    }

But the letter spacing is very weird, it's inconsistent. I've found that it spaces individual characters consistently (example, it always spaces the "n" very far from the next character and the "a" very close to the next character), but is there something I can do for this function to space the letters a bit more naturally?

Anyone interested can check out the full project here: https://www.dropbox.com/sh/uy3jtdov9s153wd/AACEYyk8QT7YdqNe8QpRGU-Ea?dl=0

Thanks in advance!

I just get started with processing some days ago so I hope somebody can help me with my problem:

I've written a code for a chessboard but I don't know how to letter the individual fields. Down on the left side i wanted "A1", right next to it "B1" etc. How can I do it?

I hope someone can help me and sorry for my bad english - I'm from Denmark :)

if (saved.charAt(l) == 1)

#

#

#$

### $

# $ $

## # ## #

# ## ##### ..

$ $ ..

#### ### #@## ..

#

#

Each symbol(#、$、@) represent a image. I need translate the array into a whole picture.

String lines[] = loadStrings("test.txt");
println(lines[0]);

String letter = lines[0].substring(1, 2);
println(letter);

if(letter == "t"){
  print("first letter is t!");
}else{
  print("first letter is not t!");
}

The console says:

ttt-test
t
first letter is not t!

how do i address characters in string? name[0][4] should be 1 name[1][4] should be 2 what is the proper syntax, this worked in C

HOW’S IT GOING?  with scrambled alphabet HOAZXJRTUYBIVEWKLSNCDMFGPQ   becomes
TWF'N UC RWUER?

I don't get how to replace the letters after generating the "new" alphabet

here's what i have done:

public static String cryptocode (String cryptic)
{
    sc = new Scanner (System.in); 
    clear();

    StringBuffer alphabet = new StringBuffer("ABCDEFGHIJKLMNOPQRSTUVWXYZ");
    String holder = "";

    //Generates a "new" alphabet
    for (int x=1; x<=100; x++)
    {   
        char temp;
        int num1 = (int)(Math.random()*alphabet.length());
        int num2 = (int)(Math.random()*alphabet.length());

        temp = alphabet.charAt(num1);
        alphabet.setCharAt(num1, alphabet.charAt(num2));
        alphabet.setCharAt(num2, temp);
    }

    cryptic = cryptic.toUpperCase();
    System.out.println(alphabet);

    for (int x= 0; x < cryptic.length(); x++)
    {
        //Can't figure out how to replace the letters using the new alphabet
    }

    return holder;
}

I have an array of Strings, {a,b,c,b,a,d,a,c,a}. I wanted to sort and replace them with integers, and change it as {0,1,2,1,0,3,0,2,0}

As the first step I tried removing the repeating elements from the array and made another array of strings {a,b,c,d}. Then I used a for loop and assigned values for these strings as {0,1,2,3}.

Now I wanted to replace the individual members in the first array of strings, where "a" is replaced with "0", "b" with "1", "c " with "2" and "d" with "3", and make an array {0,1,2,1,0,3,0,2,0}

String [] name = {"a", "b", "c", "b", "a", "d", "a", "c", "a"};

IntDict sortedName;
IntDict finalNameList;


void setup() {
  size(600, 600);
  smooth();

  sortedName = new IntDict();
  finalNameList = new IntDict();


  for (int i=0; i<name.length; i++) {
    finalNameList.increment(name[i]);
  }

  String [] names = sortedName.keyArray(); //// sorted array of strings {a,b,c,d}

  for (int i=0; i<names.length; i++) {
    finalNameList.set(names[i], i);
  }

  int [] values = finalNameList.valueArray(); ///// assigned values for a,b,c,d-- 0,1,2,3


  ////// now i wanted to replace the strings in the first array, name with the integers

  for (int i =0; i<name.length; i++) {
    name[i]= name[i].replaceAll(names[i], i-names.length);

    println(name[i]);
  }
}


void draw() {

  background(125);
}

would be great if someone can help me with this. many thanks in advance :)

My code:

import controlP5.*;
ControlP5 controlP5;

String headline = "Cryptography machine";
String output = "";
String word = "";
String letter [];
char character;
int mode;
int crypt;
String tempTemp[];


void setup() 
{ 
  size(700,400); 
  background(0); 
  controlP5 = new ControlP5(this);
  PFont font = createFont("arial",20);   

controlP5.addTextfield("plain text")
           .setPosition(20, 100)
           .setSize(500,45)
           .setFont(font)
           .setFocus(true)
           .setColor(color(255,0,0));

controlP5.addTextfield("crypt text")
           .setPosition(550, 100)
           .setSize(45,45)
           .setFont(font)
           .setFocus(true)
           .setColorBackground(color(0,0,255));

controlP5.addButton("Encrypt")
           .setValue(1)
           .setPosition(20,170)
           .setSize(100,19)
           .setColorBackground(color(255, 0, 0));

controlP5.addButton("Decrypt")
           .setValue(2)
           .setPosition(140,170)
           .setSize(100,19)
           .setColorBackground(color(255, 0, 0));

Button reset = controlP5.addButton("Reset")
           .setValue(3)
           .setPosition(260,170)
           .setSize(100,19)
           .setColorBackground(color(255, 0, 0));      

reset.addCallback(new CallbackListener() 
  {
    public void controlEvent(CallbackEvent theEvent) 
    {
      switch(theEvent.getAction()) 
      {
        case(ControlP5.ACTION_PRESSED): mode = 3; break;
        case(ControlP5.ACTION_RELEASED): mode = 0; break;
      }
    }
  }
  );

mode = 0;
}

void draw() 
{
  background(0); 
  fill (255); 
  text(output, 20,300);

// Overskrift.
  textSize(40);
  text(headline, 130, 60);

println(output);
  encryptFunction();

switch(mode)
  {
      case 1: 
        encryptFunction();
        break;
      case 2:
        encryptFunction();
        break;
      case 3:
        resetFunction();
        break;
  }
}

public void Encrypt(int theValue) {
  mode = theValue; 
}

public void Decrypt(int theValue) {
  mode = theValue;  
}

public void encryptFunction()
{
    word = controlP5.get(Textfield.class,"plain text").getText();
    letter = word.split("");
    for(int i = 0; i < letter.length; i++)
    {
        String temp = letter[i];
        try 
        {
            character = temp.charAt(0);
        } 
        catch (StringIndexOutOfBoundsException e) 
        {

        }

        try 
        {
            crypt = Integer.parseInt(controlP5.get(Textfield.class,"crypt text").getText());
        } 
        catch (NumberFormatException e) 
        {

        }

        int ascii = (int) character;
        int xor = ascii ^ crypt;
        char encryptedWordChar = (char) xor;
        String encryptedWord = Character.toString(encryptedWordChar);

        try 
        {
            tempTemp[i] = encryptedWord;
        } 
        catch (NullPointerException e) 
        {

        }

    }
        try 
        {
            output = tempTemp.toString();
        } 
        catch (NullPointerException e) 
        {

        }           
}

public void resetFunction()
{
}

The encryption is done in the metode - encryption.

Hope some one will help me.

• Check first character in a string
• Check what that character is.
• Add 1 to counter (could use an array to store the frequency of each character)
• Move on to the next character in the string
• and so on..

Essentially I am trying to figure out a way of counting the frequency of each different character in a string.

I was able to do this using if/else statements for each letter of the alphabet but ideally I would like a better way of doing this.

Heres what I have so far:

      String yourString = msg;
      char[] allChars = new char[yourString.length()];
      for (int i = 0; i < yourString.length (); i++) {
        allChars[i] = yourString.charAt(i);
        String character = str(allChars[i]);

        for (counter=0; counter < alpha.length; counter++) {
          if (character.equals(alpha[counter]) == true ) {
            count[counter] = count[counter]+1;
          }
        }
      println("The number of A is" + count[0]);
      }

alpha is a character array containing the individual letters of the alphabet count is an array where I am trying to store the values i.e:

• count[0] would equal the number of times the letter A appears in the string
• count[1] would equal the number of times the letter B appears in the string

Any help would be great! thanks!

String theLetters = "Hello!";

void setup()
{
  size(400, 400);
}

void draw()
{
  translate(10, height/2);
  for (int i = 0; i < theLetters.length(); i++)
  {
    char thisLetter = theLetters.charAt(i);

    text(thisLetter, 0, 0);
    translate(textWidth(thisLetter), 0);
  }
}

void keyPressed()
{
  if (key != CODED) theLetters += key;
}

String Axiom="FL";                      //"FX"
String ER="F<F-[F^>>-F+F]+[>&+F-FL]";   //"FF-[F^-F+FL]+[>&+F-FL]"
String ER2="F&F+<[F><[>+F]]+&[F<^&--FL]";  //"FF+[F&>+FL]+[F<^-FL]"
String NeuER="";   
String Zwsp=""; 


void setup() {
  size(1200, 1000, P3D);
  smooth(); 
  strokeWeight(0.8);
  frameRate(300);
  for (int a=0; a<=5; a++) {
    if (a==0) {
      NeuER=NeuER+Axiom; 
    } else {
      for (int b=0; b<NeuER.length(); b++) {
        if (NeuER.charAt(b)=='F') {
          Zwsp=Zwsp + ER;
        } else if (NeuER.charAt(b)=='X') {
          Zwsp=Zwsp + ER2;
        } else {
          Zwsp=Zwsp + NeuER.charAt(b);
        }     
      }
      NeuER=Zwsp;   
      Zwsp="";
    }
  }
  print(NeuER);

}

void linie(float x2, float y2, float z2) {

  stroke(random(255), random(255), random(255));

  //if (mousePressed && (mouseButton == LEFT)) {
    //stroke(0, 0, 0, 0);
  //}

  line(0, 0, 0, x2, y2, z2);
  translate(x2, y2, z2);

}

void kreis (float x3, float y3, float z3 ) {
  fill(127, 4, 4);
   if (keyPressed && (key == 's')) {
    fill(255, 64,64);
  }
  //fill(random(100,150),random(200),random(40),200);
   if (keyPressed && (key == 'a')) {
     fill(238,238,0);
   }
   if (keyPressed && (key == 'd')) {
     fill(51,51,255);
   }
  noStroke();
  lights();
  translate(x3, y3, z3);
  sphere(2);
}



void rechts() {
  rotateZ(radians(25));
}

void links() {
  rotateZ(-(radians(25)));
}
void posMerk() {
  pushMatrix();
}

void posZrks() {
  popMatrix(); 
}

void vorKippen() {
  rotateX(radians(25));
}

void rueckKippen() {
  rotateX(-(radians(25)));
}

void vorRollen() {
  rotateY(radians(25));
}

void rueckRollen() {
  rotateY(-(radians(25)));
}

void PB() {
  rotate(PI*0.3);
}

void MB() {
  rotate(-(PI*(0.23)));
}

void draw() {
  sphereDetail(5);
  translate (640,980, 0);
  background(191,239,255,0); 
  if((mousePressed && (mouseButton == RIGHT))) {
    rotateX(radians(mouseX));
  }
  rotateY(radians(mouseX));
  float zoom = map(mouseY, 0, height, 0.1, 4);
  scale(zoom);
  linie(0, -20, 0);    //"Stamm" des Baum
  for (int i=0; i<NeuER.length(); i++) {
    if (NeuER.charAt(i)=='F') {
      linie(0, -8, 0);   //random(-100)    
     } else if (NeuER.charAt(i)=='[') {
      posMerk(); 
     } else if (NeuER.charAt(i)==']') { 
      posZrks(); 
     } else if (NeuER.charAt(i)=='-') {
      links();
     } else if (NeuER.charAt(i)=='+') {
      rechts(); 
     } else if (NeuER.charAt(i)=='&') {
      vorKippen();
     } else if (NeuER.charAt(i)=='^') {
      rueckKippen();
     } else if (NeuER.charAt(i)=='<') {
      vorRollen();
     } else if (NeuER.charAt(i)=='>') {
      rueckRollen();
     } else if (NeuER.charAt(i)=='L') {
      //scale(random(0.9,1.8));
      kreis(0, 0, 0);
     }
  }
}

How can i achieve this?