Write a java program to check string is Panagram or not ? 

import java.util.Scanner;

public class PanagramString {

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

System.out.println("Enter a String : ");

String str = sc.nextLine();

if (str.length() < 26) {

System.out.println("Entered String is not Panagram ");

} else {

boolean re = isPanagram(str);

if (re) {

System.out.println("Entered string is panagram ");

} else

System.out.println("Not a panagram string");

}

}

static boolean isPanagram(String str) {

int count[] = new int[26];

for (int i = 0; i < str.length(); i++) {

char ch = str.charAt(i);

if (ch >= 65 && ch <= 90) {

count[ch - 65]++;

} else if (ch >= 97 && ch <= 122) {

count[ch - 97]++;

}

}

for (int i = 0; i < count.length; i++) {

if (count[i] == 0) {

return false;

}

}

return true;

}

}