// A string is a pangram if it contains all the characters of the alphabet ignoring case
import java.util.stream.Collectors;
import java.util.stream.Stream;
public class MyClass {
public static String removeRepeatedCharactersFromString(String str) {
StringBuilder sb = new StringBuilder();
str.chars().distinct().forEach(ch -> sb.append((char) ch));
return sb.toString();
}
public static boolean isStringPangram(String str) {
String abc = "abcdefghijklmnopqrstuvwxyz";
str = str.toLowerCase();
str = str.replaceAll("\\s+",""); // remove spaces from string
str = removeRepeatedCharactersFromString(str);
str = Stream.of(str.split("")) // sort string
.sorted()
.collect(Collectors.joining());
return abc.equals(str);
}
public static void main(String args[]) {
String str = "The quick brown fox jumps over the lazy dog";
System.out.println(isStringPangram(str));
}
}
/*
run:
true
*/
