split on in java

1String string = "004-034556";
2String[] parts = string.split("-");
3String part1 = parts[0]; // 004
4String part2 = parts[1]; // 034556
5

1public class SplitExample2 { 
2    public static void main(String args[]) 
3    { 
4        String str = "My name is Chaitanya";
5        //regular expression is a whitespace here 
6        String[] arr = str.split(" "); 
7  
8        for (String s : arr) 
9            System.out.println(s); 
10    } 
11}

1String textfile = "ReadMe.txt";
2String filename = textfile.split(".")[0];
3String extension = textfile.split(".")[1];

1String textfile = "ReadMe.txt";
2String filename = textfile.split("\\.")[0];
3String extension = textfile.split("\\.")[1];