public class MyClass {
static String remove_chars(String s, String chars) {
int i = 0, internal_i = 0, len = s.length();
char arr[] = s.toCharArray();
while (i != len) {
char ch = arr[i];
if (chars.indexOf(ch) == -1) {
arr[internal_i] = arr[i];
internal_i++;
}
i++;
}
s = new String(arr);
return s.substring(0, internal_i);
}
public static void main(String args[]) {
String first = "java programming language";
String second = "rog";
System.out.println(remove_chars(first, second));
}
}
/*
run:
java pammin lanuae
*/