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Answer to Question #53898 in Java | JSP | JSF for b.rajesh

Question #53898
In the Byteland country a string "S" is said to super ascii string if and only if count of each character in the string is equal to its ascii value.
In the Byteland country ascii code of 'a' is 1, 'b' is 2 ...'z' is 26.
Your task is to find out whether the given string is a super ascii string or not.
Expert's answer
import java.util.ArrayList;
import java.util.List;

public class SuperString {
public static void main(String[] args) {
String str = args[0].toLowerCase();
if(str != null) {
if(testForSuper(str)) {
System.out.println("String " + str + " is a super ascii string");
} else {
System.out.println("String " + str + " isn't a super ascii string");
}
}
}

public static boolean testForSuper(String str) {
List<Character> checkedLetters = new ArrayList<>();
for(int i = 0; i < str.length(); i++) {
char ch = str.charAt(i);
int counter = 0;
if(checkedLetters.contains(ch)) {
continue;
}
for(int j = i; j < str.length(); j++) {
if(str.charAt(j) == ch) {
counter++;
}
}

if(counter != (ch - 96)) {
return false;
}
checkedLetters.add(ch);
}
return true;
}
}

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