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0048-rotate-image/0048-rotate-image.java

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+class Solution {
+    public void rotate(int[][] matrix) {
+        for(int i = 0; i< matrix.length; i++){
+            for(int j = i + 1; j < matrix.length; j++){
+                int temp = matrix[i][j];
+                matrix[i][j] = matrix[j][i];
+                matrix[j][i] = temp;
+            }
+        }
+        for(int i = 0; i < matrix.length; i++){
+            int start = 0;
+            int end = matrix.length - 1;
+
+            while(start < end){
+                int temp = matrix[i][start];
+                matrix[i][start] = matrix[i][end];
+                matrix[i][end] = temp;
+                end--;
+                start++;
+            }
+        }
+    }
+}