String.valueOf()

public class Test
{
    public static void main(String[] args)
    {
        int j=1234567;
        String sNumber=String.valueOf(j);
        System.out.println("j是" + sNumber.length() + "位数。");// j是7位数。           
    }    
}

public class Test
{
    public static void main(String[] args)
    {
        int j=1234567;
        String sNumber=String.valueOf(j);
        System.out.println("j是" + sNumber.length() + "位数。");
        
        String s="Mary,F,1976";
        String[] sPlit=s.split(",");
        for (int i=0;i<sPlit.length;i++)
        {
            System.out.println(sPlit[i]);
            //Mary
            //F
            //1976
        }            
    }    
}