Hi  - new programmer here. I am trying to graph an array of dates onto an axis, but I'm having trouble figuring out the number of days between dates. I tried the function found in this post, but kept getting an error that said "function getTime() does not exist."

I have an array has a few hundred strings in the format: "Tue, 16 Jun 2009 17:24:09 -0500". How can I find how many days have elapsed since the oldest date for each date in the array?

I am a new processing user trying to figure out how to compare two columns of data from a Google docs spreadsheet. The first column is age, the second is sex. My goal is to grab the ages for all males and females separately. I am able to successfully print the array of ages, and the array of sex, but when I try combining the two, I keep getting various errors (most frequently "null pointer exception"). My ultimate goal is to create 2 rows of circles, the first representing female ages, the second male ages. Here's the code:

1. void setup() {
    size(800,600);
    background(0);
    smooth();
   
    int[] numbers = getNumbers();
    String[] sex = getSex();
    
    fill(255,40);
    noStroke();
    for (int i = 0; i < numbers.length; i++) {
      if( sex[i].equals("F") && numbers[i] > 0 ) {
        ellipse(numbers[i] * 10, width/2, 10,10);
      };
    };
   };

And the functions:

1.   int[] getNumbers() {
         println("Asking Google for numbers...");
         sm = new SimpleSpreadsheetManager();
         sm.init("RandomNumbers", googleUser, googlePass);
         sm.fetchSheetByKey(sUrl, 0);
        
         int n = sm.currentListEntries.size();
         int[] returnAge = new int[n];
        
         for (int i = 0; i < n; i++) {
           if( sm.getCellValue(5,i) != null ) {
             returnAge[i] = int(sm.getCellValue(5, i));
           };
         };
         return(returnAge);
     };
    
     String[] getSex() {
         println("Asking Google for sex...");
         sm = new SimpleSpreadsheetManager();
         sm.init("Sex", googleUser, googlePass);
         sm.fetchSheetByKey(sUrl, 0);
        
         int m = sm.currentListEntries.size();
         String[] returnSex = new String[m];
        
         for (int i = 0; i < m; i++) {
           if( sm.getCellValue(6,i) != null ) {
             returnSex[i] = sm.getCellValue(6, i);
           };
         };
   
         return(returnSex);
     };