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插入排序算法

java
import java.util.Arrays;

/**
 * 插入排序算法
 * 遍历数组,当遍历之后需要从索引向前遍历,对比相邻的数据,如果顺序不对就交换两个元素
 */
public class Insertion extends SortTemp{
    @Override
    public void sort(Comparable[] a) {
        for (int i = 0; i < a.length; i++) {
            /*从当前位置向前遍历*/
            for (int j = i; j > 0 && less(a[j],a[j-1]); j--) {
                exech(a,j,j-1);
            }
        }
    }
    public static void main(String[] args) {
        String[] strings = {"b", "a", "g", "d"};
//        Arrays.sort(strings);
        System.out.println(Arrays.toString(strings));
        Insertion insertion = new Insertion();
        assert !insertion.isSorted(strings);
        insertion.sort(strings);
        System.out.println(Arrays.toString(strings));
        assert insertion.isSorted(strings);
    }
}