RotateImage.java

public class Solution {
    public void rotate(int[][] matrix) {
        // Start typing your Java solution below
        // DO NOT write main() function
        int size = matrix.length;
        for (int i = 0; i < size/2; i++)
            for (int j = 0; j < (size + 1)/2; j++){
               int temp = matrix[i][j];
                matrix[i][j] = matrix[size - j - 1][i];
                matrix[size -j - 1][i] = matrix[size - i - 1][size - j - 1];
                matrix[size - i - 1][size - j - 1] = matrix[j][size - i - 1];
                matrix[j][size - i - 1] = temp;
            }
    }
}