java编程

import *;
class input
{
    /*将字符数组排序后返回*/
    static char[] paixu(char[] c)
    {
        char temp;
        for(int j=0;j<4;j++)
            for(int i=j;i<4;i++)
            {
                if(c[i]>c[i+1])
                {
                    temp=c[i];
                    c[i]=c[i+1];
                    c[i+1]=temp;
                }
            }
        return c;   
    }

    static public void main(String[] args)
    {
        try
        {
            char[] c=new char[20];
            System.out.print("请输入字符：");
            for(int i=0;i<5;i++)
            {
                c[i]=(char)System.in.read();
            }
            System.out.print("输入的字符为：");

            for(char a:c)
                System.out.print("  "+a);
            System.out.println();
            System.out.print("排序后输出为：");
            paixu(c);
            for(char a:c)
                System.out.print("  "+a);
                        
        }
            
        catch(IOException e){}
    }
}