Answers for "how to cast from string to char"

string to char*

std::string str = "string";
const char *cstr = str.c_str();

java convert a string to char

String string =  "ABCDEF" ;
 
char[] charsFromString = string.toCharArray(); // { 'A', 'B', 'C', 'D', 'E', 'F' }

java convert a char

char[] chars = { 'A', 'B', 'C', 'D', 'E', 'F' };

String str1 = String.valueOf(chars); //"ABCDEF"
String str2 = new String(chars);// "ABCDEF"

System.out.println(str1.equals(str2)); //"true"