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BAEL-2536-addressed review comments

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This commit is contained in:
Varun Jain
2019-01-03 22:42:26 +05:30
parent eacc84a450
commit 4eb3f29430
2 changed files with 21 additions and 20 deletions
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21
java-strings/src/main/java/com/baeldung/string/Panagram.java → java-strings/src/main/java/com/baeldung/string/Pangram.java
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@@ -6,12 +6,13 @@ import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.Stream;
public class Panagram {
public class Pangram {
private static final int ALPHABET_COUNT = 26;
public static boolean isPanagram(String str) {
if (str == null)
return false;
Boolean[] alphabetMarker = new Boolean[26];
Boolean[] alphabetMarker = new Boolean[ALPHABET_COUNT];
Arrays.fill(alphabetMarker, false);
int alphabetIndex = 0;
str = str.toUpperCase();
@@ -33,13 +34,13 @@ public class Panagram {
return false;
// filtered character stream
str = str.toUpperCase();
Stream<Character> filteredCharStream = str.chars()
.filter(item -> ((item >= 'A' && item <= 'Z') || (item >= 'a' && item <= 'z')))
String strUpper = str.toUpperCase();
Stream<Character> filteredCharStream = strUpper.chars()
.filter(item -> ((item >= 'A' && item <= 'Z')))
.mapToObj(c -> (char) c);
Map<Character, Boolean> alphabetMap = filteredCharStream.collect(Collectors.toMap(item -> item, k -> Boolean.TRUE, (p1, p2) -> p1));
return (alphabetMap.size() == 26);
return (alphabetMap.size() == ALPHABET_COUNT);
}
public static boolean isPerfectPanagram(String str) {
@@ -47,13 +48,13 @@ public class Panagram {
return false;
// filtered character stream
str = str.toUpperCase();
Stream<Character> filteredCharStream = str.chars()
.filter(item -> ((item >= 'A' && item <= 'Z') || (item >= 'a' && item <= 'z')))
String strUpper = str.toUpperCase();
Stream<Character> filteredCharStream = strUpper.chars()
.filter(item -> ((item >= 'A' && item <= 'Z')))
.mapToObj(c -> (char) c);
Map<Character, Long> alphabetFrequencyMap = filteredCharStream.collect(Collectors.groupingBy(Function.identity(), Collectors.counting()));
return (alphabetFrequencyMap.size() == 26 && alphabetFrequencyMap.values()
return (alphabetFrequencyMap.size() == ALPHABET_COUNT && alphabetFrequencyMap.values()
.stream()
.allMatch(item -> item == 1));
}