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Thread: Problem with java program and CPU usage

  1. #1
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    Default Problem with java program and CPU usage

    I have written one ATM System in three Languages, if i run only in one Language the problem is not very big, if run it in three Languages then the CPU usage goes to 100, the Computer become very slow, even it not working normally.... why it is like this. can anyone help me? thank you

  2. #2
    Crazy Cat Lady KevinWorkman's Avatar
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    Default Re: Problem with java program and CPU usage

    You're going to have to be a lot more specific. What languages are you using? Are you launching them all at the same time? How much processor time does each program require? What kind of machine are you using? What does each program do?
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  3. #3
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    Default Re: Problem with java program and CPU usage

    Thank You for your reply!
    I wana answer to your question step by step. I write it in Java Language, yes i launch then all in the same time, every program will not require very much processor time, because if i run it in one language it is almost OK, working very normally, I don't what do you mean what kind of machine, but i can say that i am using DELL laptop i5 2.67GHz processor with 4GB RAM, and Java 1.7 JDK. each program just doing as an Automatic Transfer Monet machine is do, namely (Deposit, Withdraw, Transfer money, Balance in Query, Exit) i think it is not much complex, there is three classes for for each language, and three classes which every language shared like Database class which has the get Connection and so on method which is used by these three languages. and at the end one other class is used to collect these three languages to one, the class name is AllInOneFrame, the other classes is extended JPanel, and implements Key, Action, and Mouse Listeners, and the AllInOneFrame class is extended the JFrame, when i run this class the CPU usage dramatically goes to 100, and Computer become very slow.... I don't if there is any way to post the Project, because if i post the entire code it is very long, but i will the last AllInOneFrame class for more information. thank you

    package com.ustb;

    import java.awt.*;
    import java.awt.event.*;
    import java.util.ArrayList;

    import javax.swing.*;
    import javax.swing.border.Border;

    public class AllInOneFrame extends JFrame implements ActionListener, MouseListener {
    private static final long serialVersionUID = 1L;

    static JPanel cards;

    private JPanel panel1, panel2, panel3;

    private static JPanel panel4 = new JPanel();
    private JButton englishButton = new JButton("English");
    private JButton chinesehButton = new JButton("中文");
    private JButton persianhButton = new JButton("فارسی");

    private ImageIcon Up = new ImageIcon(getClass().getResource("image/Up.png"));
    private ImageIcon Up2 = new ImageIcon(getClass().getResource(
    private ImageIcon Do = new ImageIcon(getClass().getResource("image/Do.png"));
    private ImageIcon Do2 = new ImageIcon(getClass().getResource(
    private JLabel lableAdvertizeUp = new JLabel(Up);
    private JLabel lableAdvertizeDo = new JLabel(Do);
    private JLabel label = new JLabel();
    Border border = BorderFactory.createRaisedBevelBorder();

    ATMEnglish english = new ATMEnglish();
    ATMChinese chinese = new ATMChinese();
    ATMPersian persian = new ATMPersian();

    static boolean error;
    static boolean reSet = false;
    static ArrayList<String> errorIDList = new ArrayList<String>();

    Border border1 = BorderFactory.createLoweredBevelBorder();

    public AllInOneFrame() {
    panel1 = new JPanel(new FlowLayout());
    englishButton.setBackground(Color.decode("#800000" ));
    chinesehButton.setBackground(Color.decode("#800000 "));
    persianhButton.setBackground(Color.decode("#800000 "));
    MyFonts.setLabelFont(englishButton, Color.WHITE, 40);
    MyFonts.setLabelFont(chinesehButton, Color.WHITE, 40);
    MyFonts.setLabelFont(persianhButton, Color.WHITE, 40);
    MyFonts.setComponentFont(panel1, "#0000A0", Color.BLACK, null, 0);

    JLabel eng = new JLabel("Please Select Your Language", JLabel.CENTER);
    JLabel chn = new JLabel("请选择语言", JLabel.CENTER);
    JLabel per = new JLabel("لطفاً زبان خودرا انتخاب کنید", JLabel.CENTER);
    panel2 = new JPanel(new GridLayout(3, 0));
    MyFonts.setLabelFont(eng, Color.YELLOW, 50);
    MyFonts.setLabelFont(chn, Color.YELLOW, 50);
    MyFonts.setLabelFont(per, Color.YELLOW, 50);
    MyFonts.setComponentFont(panel2, "#0000A0", Color.BLACK, null, 0);

    panel3 = new JPanel(new BorderLayout());
    panel3.add(panel2, BorderLayout.NORTH);
    panel3.add(panel1, BorderLayout.CENTER);

    panel4 = new JPanel(new BorderLayout());
    panel4.add(panel3, BorderLayout.CENTER);

    cards = new JPanel();
    cards.setLayout(new CardLayout());
    cards.add("first", label);
    cards.add("center", panel4);
    cards.add("one", english.englishPanel());
    cards.add("two", chinese.chinesePanel());
    cards.add("three", persian.persianPanel());

    this.add(lableAdvertizeUp, BorderLayout.NORTH);
    this.add(cards, BorderLayout.CENTER);
    this.add(lableAdvertizeDo, BorderLayout.SOUTH);
    this.setSize(800, 600);
    this.setTitle("Auto Transfere Money");


    new Thread(new MyAnimations.MyAnimation2(lableAdvertizeUp,
    lableAdvertizeDo, Up, Do, Up2, Do2)).start();
    MyAnimations anim2 = new MyAnimations();
    MyAnimations.MyAnimation3 animation2 = anim2.new MyAnimation3(label,"pic", 3);
    new Thread(animation2).start();
    //new Thread(new WrongPasswordLocker()).start();

    public static void main(String[] args) {
    new AllInOneFrame();


    public class WrongPasswordLocker implements Runnable {

    public void run() {
    try {
    while (true) {
    for (int i = 1; i <= 60; i++) {
    if(error) {
    i = 1;
    error = false;
    if(errorIDList.size() == 0)
    else {
    } catch (InterruptedException e) {


    public void actionPerformed(ActionEvent e) {
    if(e.getSource() == englishButton) {
    english.startSeytem = true;
    reSet = true;
    ((CardLayout) cards.getLayout()).show(cards, "one");
    if(e.getSource() == chinesehButton) {
    chinese.startSeytem = true;
    reSet = true;
    ((CardLayout) cards.getLayout()).show(cards, "two");
    if(e.getSource() == persianhButton) {
    persian.startSeytem = true;
    reSet = true;
    ((CardLayout) cards.getLayout()).show(cards, "three");

    static void addListener() {

    public void mouseClicked(MouseEvent e) {


    public void mouseEntered(MouseEvent e) {
    if(e.getSource() == englishButton) {
    englishButton.setBackground(Color.decode("#000000" ));
    else if(e.getSource() == chinesehButton) {
    chinesehButton.setBackground(Color.decode("#000000 "));
    else if(e.getSource() == persianhButton) {
    persianhButton.setBackground(Color.decode("#000000 "));
    else if(e.getSource() == label)
    ((CardLayout) cards.getLayout()).show(cards, "center");

    public void mouseExited(MouseEvent e) {
    if(e.getSource() == englishButton)
    englishButton.setBackground(Color.decode("#800000" ));
    else if(e.getSource() == chinesehButton)
    chinesehButton.setBackground(Color.decode("#800000 "));
    else if(e.getSource() == persianhButton)
    persianhButton.setBackground(Color.decode("#800000 "));
    else if(e.getSource() == panel4)
    ((CardLayout) cards.getLayout()).show(cards, "first");


    public void mousePressed(MouseEvent e) {
    // TODO Auto-generated method stub


    public void mouseReleased(MouseEvent e) {
    // TODO Auto-generated method stub



  4. #4
    Administrator copeg's Avatar
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    Default Re: Problem with java program and CPU usage

    Duplicate of When i run the Program, the CPU usage become very high
    Read the forum rules.
    Thread locked.

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