Added question and solution of "Number of days in a month"

Beginner Level 📁/Number of days in a month/question.md

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+# Number of days in a month
+<div>Q: Input the number of the month, calculate the number of days present in that particular month.<br><strong>Note: </strong>Consider non-leap year.<p>&nbsp;</p>
+  <strong>Example 1: </strong><br><pre><strong>Input: </strong>10<br><strong>Output: </strong>31<br><strong>Explaination: </strong>October has 31 days</pre>
+  <strong>Example 2: </strong><br><pre><strong>Input: </strong>2<br><strong>Output: </strong>28<br><strong>Explaination: </strong>February has 28 days</pre>
+  <strong>Example 3: </strong><br><pre><strong>Input: </strong>11<br><strong>Output: </strong>30<br><strong>Explaination: </strong>November has 30 days</pre><br>
+<strong>Contraints: </strong><br>1 <= month <= 12
+</div>

Beginner Level 📁/Number of days in a month/solution.java

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+
+//number of days in a month
+import java.util.*;
+
+public class Main {
+    public static void main(String[] args){
+        Scanner sc = new Scanner(System.in);
+        System.out.println("Enter a month number of your choice (between 1 to 12): ");
+        int m = sc.nextInt(); //here "m" refers to month
+        int n; // here "n" refers to number of days
+		if (m == 1 || m == 3 || m == 5 || m == 7 || m == 8 || m == 10 || m == 12){
+		    n = 31; //jan, mar, may, july, aug, oct, dec
+		}
+		else if(m == 2) {
+		    n = 28; //feb
+		}
+		else 
+			n = 30; //rest months i.e apr, june, sep, nov
+
+		System.out.println ("Number of days in this particular month: ");
+	System.out.println(n);
+    }
+}
+
+/*
+// Output:
+Enter a month number of your choice (between 1 to 12): 
+3
+Number of days in this particular month: 
+31
+*/

Beginner Level 📁/data.json

@@ -41,5 +41,9 @@
   {
     "name": "Ghanshyam Saini",
     "githubUsername": "Ghanshyam07"
+  },
+  {
+    "name": "Neyna Nayak",
+    "githubUsername":"neyhere07"
   }
 ]