各位大神 帮我敲个java程序吧 （要求看图片 满意了 还加分） 急啊 发到812 4 23 07 4

import?java.util.Scanner;

public?class?Student?{

private?String?stuname?=?"";

private?float?stuscore?=?0;

public?String?getStuname()?{

return?stuname;

}

public?void?setStuname(String?stuname)?{

this.stuname?=?stuname;

}

public?float?getStuscore()?{

return?stuscore;

}

public?void?setStuscore(float?stuscore)?{

this.stuscore?=?stuscore;

}

public?Boolean?compare(Student?st1,?Student?st2)?{

return?st1.stuscore?<?st2.stuscore;

}

/**

?*?@param?args

?*/

public?static?void?main(String[]?args)?{

Student[]?stu?=?new?Student[20];

Scanner?scan?=?new?Scanner(System.in);

int?nCount?=?0;

System.out.println("请输入输入的学生个数：");

nCount?=?scan.nextInt();

System.out.println("请输入输入的学生姓名和分数：");

int?nCurrent?=?0;

while?(nCurrent?<?nCount)?{

Scanner?sca?=?new?Scanner(System.in);

String?strLine?=?sca.nextLine();

String[]?strLineArr?=?strLine.split("?");

Student?st?=?new?Student();

st.setStuname(strLineArr[0]);

st.setStuscore(Float.parseFloat(strLineArr[1]));

stu[nCurrent]?=?st;

nCurrent++;

}

//?排序

for?(int?i?=?0;?i?<?nCount;?i++)?{

for?(int?j?=?0;?j?<?nCount?-?i?-?1;?j++)?{

if?(stu[j].getStuscore()?>?stu[j?+?1].getStuscore())?{

Student?tmp?=?new?Student();

tmp.setStuname(stu[j].getStuname());

tmp.setStuscore(stu[j].getStuscore());

stu[j].setStuname(stu[j?+?1].getStuname());

stu[j].setStuscore(stu[j?+?1].getStuscore());

stu[j?+?1].setStuname(tmp.getStuname());

stu[j?+?1].setStuscore(tmp.getStuscore());

}

}

}

float?avescore?=?0;

float?sum?=?0;

for?(int?i?=?0;?i?<?nCount;?i++)?{

sum?+=?stu[i].getStuscore();

}

avescore?=?sum?/?nCount;

System.out.println("最低分数："?+?stu[0].getStuname()?+?"?"

+?stu[0].getStuscore());

System.out.println("最高分数："?+?stu[nCount?-?1].getStuname()?+?"?"

+?stu[nCount?-?1].getStuscore());

System.out.println("平均分数："?+?avescore);

System.out.println("排序后的数据如下：");

for?(int?i?=?0;?i?<?nCount;?i++)?{

System.out

.println(stu[i].getStuname()?+?"?"?+?stu[i].getStuscore());

}

}

}

结果如下：