Problem Statement
Pattern:
Solution
public boolean checkIfPangram (String sentence){
boolean[] charPresent = new boolean[26];
// mark all chars present as true
for (char c : sentence.toCharArray()) {
charPresent[c-'a'] = true;
}
// check if charPresent is false
for(boolean bool : charPresent)
if (!bool) return false;
return true;
}