String str = "abc123";
char[] cArr = new char[str.length()];
for(int i = 0; i < cArr.length; i++) {
cArr[i] = str.charAt(i);
}
String blubb = "abcdefg";
char meinArray[] = blubb.toCharArray();
String str = "abc123";
String meinStringArr[] = new String[str.length()];
for(int i = 0; i < meinStringArr.length; i++) {
if (i<str.length()-1) meinStringArr[i] = str.substring(i,i+1);
else meinStringArr[i] = str.substring(i);
}