冒泡

package LL;

public class Student {
    public static void main(String[] args) {
        int[]i={2,4,6,8,9};
        int b;
        for(int l=0;l<i.length;l++){
            System.out.println(i[l]+"");
        }
        for(int c=0;c<i.length-1;c++){
            for(int a=0;a<i.length-c-1;a++){
                if (i[a] > i[a+1]) {
                    b=i[a];
                    i[a]=i[a+1];
                    b=i[a+1];
                }
            }
        }
        for(int o=0;o<i.length;o++){
            System.out.println(i[o]);
        }
    }
}