Chnaging the introduction.md for consistancy

Author: jagdish-15

exercises/practice/queen-attack/.approaches/introduction.md

@@ -14,14 +14,29 @@ The problem boils down to checking three conditions:
 
 ## Approach: Simple Comparison Approach
 
-This exercise is solved using a **Simple Comparison Approach**.
-By comparing the row, column, and diagonal positions of the two queens, we can easily determine if they can attack each other.
-
-### Why This Approach?
-
-The Simple Comparison Approach is chosen for its clarity and simplicity.
-It uses basic comparison checks to determine if two queens are in attacking positions.
-This method works well for small scenarios like this one, where performance isn't a major concern.
+```java
+class QueenAttackCalculator {
+    private final Queen queen1;
+    private final Queen queen2;
+    
+    QueenAttackCalculator(Queen queen1, Queen queen2) {
+        if (queen1 == null || queen2 == null) {
+            throw new IllegalArgumentException("You must supply valid positions for both Queens.");
+        }
+        if (queen1.getRow() == queen2.getRow() && queen1.getColumn() == queen2.getColumn()) {
+            throw new IllegalArgumentException("Queens cannot occupy the same position.");
+        }
+        this.queen1 = queen1;
+        this.queen2 = queen2;
+    }
+
+    boolean canQueensAttackOneAnother() {
+        int rowDifference = Math.abs(queen1.getRow() - queen2.getRow());
+        int columnDifference = Math.abs(queen1.getColumn() - queen2.getColumn());
+        return rowDifference == 0 || columnDifference == 0 || rowDifference == columnDifference;
+    }
+}
+```
 
 For more details on the implementation of this approach, check out the [Simple Comparison Approach][simple-comparison-approach].