拆分从字符数组构建的字符串

Question

I'm trying to split a specific String of the format

0001,0004,dd/mm/yy hh:mm:ss,01,value01,value02;

in order to extract and save value01 and value02 . How can I do this?

Here is what i tried so far:

//buffer contains a String like: "0001,0004,dd/mm/yy hh:mm:ss,01,18,750"
String string = new String(buffer,0,len);

String[] parts = string.split(",");

String temp = parts[5];
String lum = parts[6];
System.out.print(temp);
System.out.print(lum);

With this code I get ArrayIndexOutofBounds when running the program in Netbeans. Image of error description

Also tried this method:

//buffer contains a String like: "0001,0004,dd/mm/yy hh:mm:ss,01,18,750"
String s= new String(buffer,0,len);

String aux = s + ",";
String[] dados = aux.split(",");          
float valor1 = Float.parseFloat(dados[5]);
float valor2 = Float.parseFloat(dados[6]);
System.out.print(aux);

Answer 1

This:

String temp = parts[5];
String lum = parts[6];

Should be this:

String temp = parts[4];
String lum = parts[5];

Remember that arrays in Java are zero-based . So if you do this:

String[] parts = "0001,0004,dd/mm/yy hh:mm:ss,01,value01,value02".split(",");

Then "0001" would be in parts[0] , "0004" in parts[1] , "value01" in parts[4] etc.

Answer 2

Achieving what you're trying to do is acutally pretty easy.

Assuming that your string really always looks like:
0001,0004,dd/mm/yy hh:mm:ss,01,value01,value02;

Just cut off the start of the string which you don't need and extract the values afterwards:

// This can be done in hundreds of ways, for the sake of simplicity i'll use substring
String s ="0001,0004,dd/mm/yy hh:mm:ss,01,value01,value02;";
String cutOff = s.substring(31, s.length()-1);
String[] results = cutOff.split(",");

Answer 3

please find below code. It has just a bit modification in Andrew's code. Since we are storing the string after splitting into a String array and it's obvious that array index starts with 0. That's why in order to get value01 and value02, we should use index 4 and 5.

public class JavaApplication1
 {
  public static void main(String[] args)
  {
    String str="0001,0004,dd/mm/yy hh:mm:ss,01,value01,value02";
    String [] strArr=str.split(",");
    String temp=strArr[4];
    String lum=strArr[5];
    System.out.println(temp);
    System.out.println(lum);
 }   
}