Java character manipulation

int→String

int num=10;

Integer i=Integer.valueOf(num);

String str=i.toString();

String→int

String str="24";

int num=Integer.parseInt(str);

double→String

double num=3.66;

Double i=Double.valueOf(num);

String str=i.toString();

String→Double

String st="3.66";

double a=Double.parseDouble(str)