Int,char,string three types of mutual conversions in Java

How do I convert string strings to integer int? int i = integer.valueof (my_str). Intvalue ();

int I=integer.parseint (str);

How do I convert string strings to integers? Integer integer=integer.valueof (str);

How do I convert an integer int to a string string? 1.) String s = string.valueof (i);
2.) String s = integer.tostring (i);
3.) String s = "" + I;
How do I convert an integer int to an integer? Integer integer=new integer (i);

How do I convert an integer to a string of strings? Integer integer=string

How do I convert an integer to int? int Num=integer.intvalue ();

How do I convert a string to BigDecimal? BigDecimal d_id = new BigDecimal (str);

How do I convert a String to char? Char[] ca= "123". ToCharArray ();
How do I convert char to string?      String s=ca.tostring (); Any type can be converted to a string type with ToString ()

Additional time processing is attached:

SimpleDateFormat SDF = new SimpleDateFormat ("Yyyy-mm-dd HH:mm:ss:SSS"); Output Time Sdf.format (new Date ()) in 2011-09-21 13:33:24:456 format;

Int,char,string three types of mutual conversions in Java