Added 15 solutions

Java/Introduction/Java Static Initializer Block/Solution.java

@@ -0,0 +1,33 @@
+import java.io.*;
+import java.util.*;
+import java.text.*;
+import java.math.*;
+import java.util.regex.*;
+
+public class Solution {
+    private static int B;
+    private static int H;
+    private static boolean flag;
+
+    static {
+        Scanner scan = new Scanner(System.in);
+        B = scan.nextInt();
+        H = scan.nextInt();
+        scan.close();
+        if (B <= 0 || H <= 0) {
+            System.out.println("java.lang.Exception: Breadth and height must be positive");
+            flag = false;
+        } else {
+            flag = true;
+        }
+    }
+
+    public static void main(String[] args){
+        if(flag){
+            int area=B*H;
+            System.out.print(area);
+        }
+        
+    }//end of main
+
+}//end of class