8大ソートアルゴリズムの1つ挿入ソート---直接挿入ソートアルゴリズム

public class DirectInsert{
    public static void main(String[] args){
        int[] array = {2,6,1,9,4,3,23,65,0,7};
        System.out.print("the array before is:");
        for(int i = 0; i < array.length; i++){
            System.out.print(array[i]+"   ");
        }
        System.out.println(" ");
        System.out.println("the array after is:");
        directInsert(array);
    }
    private static void directInsert(int[] array){
        int len = array.length;
        for(int i = 1; i < len; i++){
            for(int j = i; j > 0; j--){
                if(array[j] < array[j-1]){
                    int temp = array[j];
                    array[j] = array[j-1];
                    array[j-1] = temp;
                }
            }
            for(int z = 0; z < len; z++){
                System.out.print(array[z]+"   ");
            }
            System.out.println(" ");
        }
    }
}