Java -- 给定一个int数组，拼接出最大数值

public class ZhiJieTiaoDong {

    /*        给定一个数组：组合成最大数值     */    public String szpj(int[] args){        if(null == args || args.length == 0){            return "";        }        StringBuilder stringBuilder = new StringBuilder();        int[] yxsz = compareSZ(args);        for (int i = args.length - 1; i >= 0; i--){            stringBuilder.append(String.valueOf(args[i]));        }        return stringBuilder.toString();    }

    /*        排序     */    private int[] compareSZ(int[] args){        if(null == args){            throw new NullPointerException();        }        if (args.length == 1){            return args;        }        int change = 0;        for(int i = 0; i < args.length - 1; i++){            for(int j = i + 1; j < args.length; j++){                if(compare(args[i], args[j])){                    change = args[i];                    args[i] = args[j];                    args[j] = change;                }            }        }        return args;    }

    /*        比较两个数字哪个作高位排列        example: 9, 98 --> 998; 15, 18 --> 1815     */    private boolean compare(int a, int b){        String aa = String.valueOf(a);        String bb = String.valueOf(b);        int ab = Integer.valueOf(aa + bb);        int ba = Integer.valueOf(bb + aa);        if(ab >= ba){            return true;        }else {            return false;        }    }

    public static void main(String[] args){        ZhiJieTiaoDong zhiJieTiaoDong = new ZhiJieTiaoDong();        int[] a = {10,21,13,24};        int[] b = {35,11,23,4,34};        int[] c = {0, 4,2, 32, 11, 22, 11};        System.out.println(zhiJieTiaoDong.szpj(c));    }

}

原文地址：https://www.cnblogs.com/fqfanqi/p/10693444.html