Update flow statements

Author: Ruby123-creator

flow statements

@@ -41,5 +41,13 @@ public class Main
      continue;
      }
      }
+     // nested loop
+        for(int i=1;i<=n;i++){
+	  for(int j=1;j<=n;j++){
+	  System.out.print("*");
+	  }
+	  System.out.println();
+	  }
+	  
 	}
 }