public static void main(String[] args) {

int[] array = {2,4,6,1,3,5,7};

reOrderArray(array);

for (int i : array) {

System.out.print(i + " ");

}

}

public static void reOrderArray(int [] array) {

for (int i = 0; i < array.length; i++) {

for (int j = 0; j < array.length - i - 1; j++) {

if (array[j] % 2 == 0 && array[j+1] % 2 == 1) {

int tmp = array[j];

array[j] = array[j+1];

array[j+1] = tmp;

}

}

}

}

}