void main() {
String s = 'dart java c c++';
for (int i = 0; i < s.length; i++) {
print('ASCII value of ${s[i]} = ${s.codeUnitAt(i)}');
}
}
/*
run:
ASCII value of d = 100
ASCII value of a = 97
ASCII value of r = 114
ASCII value of t = 116
ASCII value of = 32
ASCII value of j = 106
ASCII value of a = 97
ASCII value of v = 118
ASCII value of a = 97
ASCII value of = 32
ASCII value of c = 99
ASCII value of = 32
ASCII value of c = 99
ASCII value of + = 43
ASCII value of + = 43
*/