01.01. Is Unique LCCI
class Solution { public boolean isUnique(String astr) { char[] str = astr.toCharArray(); Arrays.sort(str); boolean flag = true; for(int i=0;i<str.length-1;i++){ if(str[i]==str[i+1]){ return false; } } return true; } }
class Solution { public boolean isUnique(String astr) { char[] str = astr.toCharArray(); Arrays.sort(str); boolean flag = true; for(int i=0;i<str.length-1;i++){ if(str[i]==str[i+1]){ return false; } } return true; } }