插入排序

Posted 2022-12-09 Qunar_尤雪萍

插入排序

/**
 * 插入排序
 * Created by xueping.you on 15-8-5.
 */
public class InsertSort 
    private final static Logger logger = LoggerFactory.getLogger(InsertSort.class);

    public static void insertSort(int []unSortArray)
        for(int i=1; i<unSortArray.length; i++)
            if(unSortArray[i-1]>unSortArray[i])
                int j=i;
                int temp=unSortArray[i];
                while (j>0 && unSortArray[j-1]>temp)
                    unSortArray[j]=unSortArray[j-1];
                    j--;
                
                unSortArray[j]=temp;
            
        
    

    public static void main(String []args)
        int [] array = new int[]12,10,2,45,31,56,1,9;
        logger.info("before:", array);
        insertSort(array);
        logger.info("after:",array);
    

result:
19:29:10.340 [main] INFO com.qyou.data.arithmetic.InsertSort - before:[12, 10, 2, 45, 31, 56, 1, 9]
19:29:10.352 [main] INFO com.qyou.data.arithmetic.InsertSort - after:[1, 2, 9, 10, 12, 31, 45, 56]