java practice recording 2020-04-27
Given a string, return a string made of the first 2 chars (if present), however include first char only if it is 'o' and include the second only if it is 'z', so "ozymandias" yields "oz".
startOz("ozymandias") → "oz"
startOz("bzoo") → "z"
startOz("oxx") → "o"
public String startOz(String str) {
String result = "";
if (str.length() >= 1 && str.charAt(0)=='o') {
result = result + str.charAt(0);
}
if (str.length() >= 2 && str.charAt(1)=='z') {
result = result + str.charAt(1);
}
return result;
}
