package cn.go4mi.util;public class Turns {    //测试main方法    public static void main(String[] args) {        String [] a={"a","b","c"};        String [] b={"d","e"};        String [] c={"f","j"};        String [] d={"h","i"};        String[] add = new Turns().turns(a, b,c,d);        for (String string : add) {            System.out.println(string);        }    }    /**     * 两两遍历     * @param array1     * @param array2     * @return     */    public static String[] doubleTurns(String [] array1,String[] array2){        String [] target=new String[array1.length*array2.length];        for (int i = 0,a1=0,a2=0; i <array1.length*array2.length; i++) {            target[i]=array1[a1]+","+array2[a2];            a2++;            if(a2==array2.length){                a2=0;                a1++;            }        }        return target;    }    /**     * 遍历组合     * @param arrays     * @return     */    public static String[] turns(String[] ...arrays){        if(arrays.length==1){            return arrays[0];        }        if(arrays.length==0){            return null;        }        //获得总结果数        int count=0;        for (int i = 0; i < arrays.length; i++) {            count*=arrays[i].length;        }        String target[]=new String[count];        //两两遍历        for (int i = 0; i < arrays.length; i++) {            if(i==0){                target=doubleTurns(arrays[0],arrays[1]);                i++;            }else{                target=doubleTurns(target,arrays[i]);            }        }        return target;    }}