Find first non-repeating character in a String
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// Write a Java program that finds the first non-repeating character in a string.
// Ex: abracadabra → c
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public class Task {
public static void main(String[] args) {
System.out.println(findFirstUnique("abracadabra"));
}
public static char findFirstUnique(String str) {
for (int i = 0; i ＜ str.length(); i++) {
boolean unique = true;
for (int j = 0; j ＜ str.length(); j++) {
if (i == j) {
continue;
}
if (str.charAt(i) == str.charAt(j)) {
unique = false;
break;
}
}
if (unique) {
return str.charAt(i);
}
}
return '-';
}
}