rahul taiwala

In content only, And no its not a home assignment.

Suppose I have Paragraph tag which contains some string like-
<p>A friendly place for programming greenhorns Big Moose Saloon</p>

Here, word is a sequence of character separated by white space, so here words are-A,friendly,place,for,programming,greenhorns,Big,Moose,Saloon
Now I need to change the background color of each word starting from "A" to "Saloon", one by one.

I need to highlight-meaning change the background color of each and every word in the html document one after another using javascript.

I am using this code to highlight each word one by one in a html document, but it is not that good method.
And It faces some problem for some words, if white space between two word is more than one, or if return character is encountered more than once

var ie4 = false; if(document.all) { ie4 = true; } function setContent(name, value) { var d; if (ie4) { d = document.all[name]; } else { d = document.getElementById(name); } d.innerHTML = value; } function getContent(name) { var d; if (ie4) { d = document.all[name]; } else { d = document.getElementById(name); } return d.innerHTML; } function setColor(name, value) { var d; if (ie4) { d = document.all[name]; } else { d = document.getElementById(name); } d.style.background = value; } function getColor(name) { var d; if (ie4) { d = document.all[name]; } else { d = document.getElementById(name); } return d.style.color; } function animate(name, col) { var value = getContent(name); //if (value.indexOf('<span') >= 0) { return; } var length = 0; var str = ''; var ch; var token = ''; var htmltag = false; for (i = 0; i < value.length; i++) { ch = value.substring(i, i+1); if (i < value.length - 1) { nextch = value.substring(i+1, i+2); } else { nextch = ' '; } token += ch; if (ch == '<' && '/aAbBpPhHiIoOuUlLtT'.indexOf(nextch) >= 0) { htmltag = true; } if (ch == '>' && htmltag) { htmltag = false; } if (!htmltag && ch.charCodeAt(0) > 30 && ch != ' ' && ch != '\n') { var k=i; var wrd=""; if(token.length==1){ while(value.substring(k,k+1)!=' '){ wrd +=value.substring(k,k+1); k++; i++; } token=wrd +" ";} str += '<span id="' + name + '_' + length + '">' + token + '</span>'; token = ''; length++; wrd=''; } } setContent(name, str); command = 'animateloop(\'' + name + '\', ' + length + ', 0, 1, \'' + col + '\')'; setTimeout(command , 300); } function animateloop(name, length, ind, delta, col) { var next = ind + delta; //if (next >= length) { delta = delta * -1; next = ind + delta; } if (next < 0) { delta = delta * -1; next = ind + delta; } setColor(name + '_' + ind, getColor(name + '_' + next)); setColor(name + '_' + next, col); command = 'animateloop(\'' + name + '\', ' + length + ', ' + next + ', ' + delta + ', \'' + col + '\')'; setTimeout(command , 300); }

How to highlight all words in html one by one using javascript?
Any idea how to proceed?
I have tried a lot of things but I get confused when it comes to deeply nested tags.

I wish to develop a mobile chat application..

1)it will be mobile to mobile chat.

2) All interactions will be direct from mobile to mobile without any server .



can anyone please suggest me from where to start, what protocol should i use???

welcome Brian

We have been able to send thie ECG signal to mobile phones through Bluetooth and we have been able to plot it in real time.
now my question is How to save the data without affecting the plot on the mobile phone?

sorry fred, from next time I will keep your words in mind.
And for this problem it is solved,my panel was not getting focus,just tried to get it using requestfocus() method and it is solved..

/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package javaapplication4; import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.io.*; import javax.sound.sampled.*; /** * * @author rahul */ //this is the main logic of the game public class logic extends JPanel implements MouseMotionListener, MouseListener,KeyListener { brick block[] = new brick[23]; int px,py,pheight,pwidth,bx,by,bheight,bwidth,height,width,mx=10,my,speedx,speedy,score,balls,bricks; boolean started,title,ball=true; private Timer timer1,timer2; logic(){ addKeyListener(this); title=true; //addMouseMotionListener(this);//to recognize mouse movement addMouseListener(this);//to recognize mouse event like mouse button pressed balls = 3; height = 400; width = 400; pheight = 5; pwidth = 50; px =200; py = width - 50; bwidth = 10; bheight = 10; title=true; timer1 = new Timer(16,new ActionListener() { public void actionPerformed(ActionEvent e) { bx += speedx; by += speedy; if (bx + bwidth >= width || bx <= 0) { speedx = -speedx;//used to check that the ball doesnt cross the boundary } if (by + bheight >= py && bx + bwidth >= px && bx <= px + pwidth && by <= py || by <= 0) { speedy = -speedy; } for (int i = 0; i < block.length; i++) { if (block[i].visible && by <= block[i].y + block[i].height && bx + bwidth >= block[i].x && bx <= block[i].x + block[i].width && by + bheight >= block[i].y) { speedy = -speedy; if(i==15){ //if brick 15 is broken one extra ball is rewarded balls=balls+1; } block[i].visible = false; try{ File soundFile = new File("Target.wav"); AudioInputStream audioIn = AudioSystem.getAudioInputStream(soundFile); Clip clip = AudioSystem.getClip(); clip.open(audioIn); clip.start(); }catch(Exception e1){} ++bricks; score+=10; if (bricks == 23) { bx = px + pwidth / 2 - bwidth / 2; by = py - bheight; bricks = 0; speedx = 4; speedy = -4; drawBricks(); timer1.stop(); started = false; } } } if (by >= height) { --balls; if (balls > 0) { resetBall(); } timer1.stop(); started = false; repaint(); } repaint(); } }); timer2 = new Timer(500,new ActionListener() { public void actionPerformed(ActionEvent e) { title = true; ball=true; timer2.stop(); } }); } @Override public void paint(Graphics g) { super.paint(g); if (title) { Font font1 = new Font("Arial", Font.BOLD, 60); g.setFont(font1); g.setColor(Color.green); g.drawString("Ballbreaker",width / 2 - 150,100); Font font2 = new Font("Arial", Font.BOLD, 25); g.setFont(font2); g.drawString("Play Game",width / 2 - 60, 200); g.setColor(Color.red); g.drawString("You have 3 balls",width/2-100,300); } if(!title){ if(balls!=0){ for (int i = 0; i < block.length; i++) { if (block[i].visible) { g.setColor(Color.red); g.drawRect(block[i].x - 1,block[i].y - 1,block[i].width + 1,block[i].height + 1); g.setColor(Color.CYAN); g.fillRect(block[i].x,block[i].y,block[i].width,block[i].height); } } g.setColor(Color.black); g.fillRect(px,py,pwidth,pheight); g.fillArc(bx,by,bwidth,bheight,0,360); Font font2 = new Font("Arial", Font.BOLD, 15); g.setFont(font2); g.setColor(Color.BLUE); g.drawString("Score: "+score,width /2 - 180, 370); g.drawString("Balls: "+balls,width / 2 -100, 370); } switch(balls) { case 0:int highscore=0; try{ File fil = new File("data.txt"); FileReader inputFil = new FileReader(fil); BufferedReader in = new BufferedReader(inputFil); String s =in.readLine(); highscore = Integer.parseInt(s); //this is line 19 in.close(); }catch(Exception e){} if(highscore<score){ try{ BufferedWriter writer = new BufferedWriter(new FileWriter("data.txt")); writer.write(String.valueOf(score)); if (writer != null) { writer.flush(); writer.close(); }}catch(Exception e){}} timer1.stop(); ball=false; started = false; Font font3 = new Font("Arial", Font.BOLD, 25); g.setFont(font3); g.drawString("Game Over",width / 2 - 60, 200); g.drawString("High Score: "+highscore,width /2 - 60, 250); g.drawString("Your Score: "+score,width /2 - 60, 300); repaint(); break; } } } public void drawBricks() { //code to draw the bricks,in 1st row 8,2nd row 7,3rd row 8 for (int i = 0; i < block.length; i++) { block[i] = new brick(); block[i].width = 35; block[i].height = 15; block[i].visible = true; if (i <= 7) { if (i > 0) { block[i].x = block[i - 1].x + 45; } else { block[i].x = 10; } block[i].y = 10; } else if (i <= 14) { if (i > 8) { block[i].x = block[i - 1].x + 45; } else { block[i].x = 30; } block[i].y = 30; } else { if (i > 15) { block[i].x = block[i - 1].x + 45; } else { block[i].x = 10; } block[i].y = 50; } } } public void resetBall() { bx = px + pwidth / 2 - bwidth / 2; by = py - bheight; speedx = 4; speedy = -4; } public void keyPressed(KeyEvent e) { int key = e.getKeyCode(); if(key == KeyEvent.VK_LEFT) { //mx = -20; if(!title){ px = px-20 ; repaint();//- pwidth / 2; if (!started) { bx = px + pwidth / 2 - bwidth / 2; } } repaint(); } else if(key == KeyEvent.VK_RIGHT) { mx = 20; if(!title){ px += mx ;//- pwidth / 2; if (!started) { bx = px + pwidth / 2 - bwidth / 2; } } repaint(); } } public void keyReleased(KeyEvent e) { int key = e.getKeyCode(); if(key == KeyEvent.VK_LEFT) { mx = 0; } else if(key == KeyEvent.VK_RIGHT) { mx = 0; } } public void mouseMoved() { //movement of the paddle //mx = e.getX(); //my = e.getY(); } public void mouseMoved(MouseEvent e) {} public void mousePressed(MouseEvent e) { if(!ball){ timer2.start(); } if (title) { title = false; drawBricks(); balls = 3; score = 0; bricks = 0; px = width / 2 - pwidth / 2; resetBall(); repaint(); } else if (!title) { started = true; timer1.start(); } } public void keyTyped(KeyEvent evt) {} public void mouseReleased(MouseEvent e) { } public void mouseEntered(MouseEvent e) { } public void mouseExited(MouseEvent e) { } public void mouseClicked(MouseEvent e) { } public void mouseDragged(MouseEvent e) { } }

use paint method instead of paintComponent and its working fine.....

hello every body i have some painting problem with the game can anybody help.....
here is the code
package javaapplication4; import java.awt.*; import java.awt.event.*; import javax.swing.*; /** * * @author rahul */ public class logic extends JPanel implements MouseMotionListener, MouseListener { brick block[] = new brick[23]; int px,py,pheight,pwidth,bx,by,bheight,bwidth,height,width,mx,my,speedx,speedy,score,balls,bricks; boolean started,title,hovered; private Timer timer1,timer2; logic(){ title=true; addMouseMotionListener(this); addMouseListener(this); height = 400; width = 400; pheight = 5; pwidth = 50; px =height; py = width - 50; bwidth = 10; bheight = 10; title=true; repaint(); timer1 = new Timer(16,new ActionListener() { public void actionPerformed(ActionEvent e) { bx += speedx; by += speedy; if (bx + bwidth >= width || bx <= 0) { speedx = -speedx; } if (by + bheight >= py && bx + bwidth >= px && bx <= px + pwidth && by <= py || by <= 0) { speedy = -speedy; } for (int i = 0; i < block.length; i++) { if (block[i].visible && by <= block[i].y + block[i].height && bx + bwidth >= block[i].x && bx <= block[i].x + block[i].width && by + bheight >= block[i].y) { speedy = -speedy; block[i].visible = false; score += 10; ++bricks; if (bricks == 23) { bx = px + pwidth / 2 - bwidth / 2; by = py - bheight; bricks = 0; speedx = 10; speedy = -10; drawBricks(); timer1.stop(); started = false; } } } if (by >= height) { --balls; if (balls > 0) { resetBall(); } timer1.stop(); started = false; repaint(); } repaint(); } }); timer2 = new Timer(2000,new ActionListener() { public void actionPerformed(ActionEvent e) { title = true; timer2.stop(); } }); } @Override public void paintComponent(Graphics g) { super.paintComponents(g); Graphics2D g2d = (Graphics2D)g; if(!title){ for (int i = 0; i < block.length; i++) { if (block[i].visible) { g2d.setColor(Color.red); g2d.drawRect(block[i].x - 1,block[i].y - 1,block[i].width + 1,block[i].height + 1); g2d.setColor(Color.green); g2d.fillRect(block[i].x,block[i].y,block[i].width,block[i].height); } } g2d.setColor(Color.black); g2d.fillRect(px,py,pwidth,pheight); g2d.fillArc(bx,by,bwidth,bheight,0,360); switch(balls) { case 0: timer1.stop(); started = false; timer2.start(); repaint(); break; } } } public void drawBricks() { for (int i = 0; i < block.length; i++) { block[i] = new brick(); block[i].width = 35; block[i].height = 15; block[i].visible = true; if (i <= 7) { if (i > 0) { block[i].x = block[i - 1].x + 45; } else { block[i].x = 10; } block[i].y = 10; } else if (i <= 14) { if (i > 8) { block[i].x = block[i - 1].x + 45; } else { block[i].x = 30; } block[i].y = 30; } else { if (i > 15) { block[i].x = block[i - 1].x + 45; } else { block[i].x = 10; } block[i].y = 50; } } } public void resetBall() { bx = px + pwidth / 2 - bwidth / 2; by = py - bheight; speedx = 10; speedy = -10; } public void mouseMoved(MouseEvent e) { mx = e.getX(); my = e.getY(); if(!title){ if (mx - pwidth / 2 <= 0) { mx = pwidth / 2; } if (mx + pwidth / 2 >= width) { mx = 400 - pwidth / 2; } px = mx - pwidth / 2; if (!started) { bx = px + pwidth / 2 - bwidth / 2; } } repaint(); } public void mousePressed(MouseEvent e) { if (title) { title = false; drawBricks(); balls = 3; score = 0; bricks = 0; px = width / 2 - pwidth / 2; resetBall(); repaint(); } else if (!title) { started = true; timer1.start(); } } public void mouseReleased(MouseEvent e) { } public void mouseEntered(MouseEvent e) { } public void mouseExited(MouseEvent e) { } public void mouseClicked(MouseEvent e) { } public void mouseDragged(MouseEvent e) { } }