Why does my code not work()

Processing Coding Questions
1

here is my code

SensorDataProvider s;
Gauge g;
int value = 0;
final int Mainmenu = 0;
final int Car = 1;

void setup(){
  fullScreen();
  if (key == '1'){
    s = new SensorDataProvider();
    s.Initialize("car_status_BMW_323i.csv");
    float radius = 23;
    int fuelcapacity = 60;
    //value = 1;
  }
  
  else if(key == '2'){
    s = new SensorDataProvider();
    s.Initialize("car_status_Truck_F150.csv");
    float radius = 25.4;
    int fuelcapacity = 80;
    //value = 1;
  }
}

void draw(){
  g = new Gauge();
  s = new SensorDataProvider();
  switch(value){
    case Mainmenu:
      g.ShowMenu();
      break;
  }
  switch(value){    
    case Car:
      g.speedometer();
      s.readNext();
      break;
  }
}

class Gauge{
  SensorDataProvider s = new SensorDataProvider();
  void ShowMenu(){
  background(0);
    text("Please select the following", 100, 100);
    text("1. BMW", 100, 200);
    text("2. Trcuk", 100, 300);
    text("3. Quit", 100, 400);
    if (key == '1'){
      speedometer();
    }
    if (key == '2'){
      speedometer();
    }
    if (key == '3'){
      exit();
    }
  }

  void speedometer(){
    rpm();
  }

  void rpm(){
    background(0);
    stroke(255);
    strokeWeight(6);
    fill(0);
    ellipse(500,230,240,240);
    
    //textFont(font);
    fill(255);
    text("RPM", 480, 380);
    
    //textFont(font);
    fill(255);
    textSize(55);
    text(s.readRPM(), 460, 250);
  }
} 

class SensorDataProvider{
  Table dataTable;
  TableRow row1;

  int currentvalue = 1;
  String path;

  SensorDataProvider() {
  }

  void Initialize(String path) {
    if 
    dataTable = loadTable(path, "header");
  }

  void readNext() { 
    if (currentvalue < dataTable.getRowCount() - 1){
      currentvalue++;
    }
  }

  int readRPM() {
    int RPM = dataTable.getRow(currentvalue).getInt("RPM");

    return RPM;
  }

  float readFuelLevel() {
    float FuelLevel = dataTable.getRow(currentvalue).getFloat("Fuel Level (liter)");

    return FuelLevel;
  }

  float readRatio() {
    float Ratio = dataTable.getRow(currentvalue).getFloat("Gear Ratio");

    return Ratio;
  }

  float readX() {
    float X = dataTable.getRow(currentvalue).getFloat("X");

    return X;
  }

  float readY() {
    float Y = dataTable.getRow(currentvalue).getFloat("Y");

    return Y;
  }

}

my code will start but it will freeze. I dont know how to fix this bug

2

Hi,

You have a typo here:

void Initialize(String path) {
  if 
  dataTable = loadTable(path, "header");
}

Not saying this is why you are having your freezing problem though.