问题：

定义一个表示学生信息的类Student,要求:1 成员变量:sNo表示学号,sName表示姓名,sS

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答案：

public class Student { String sNo,sName,sSex; int sAge,sScore; static int sSum; static int sNum; Student(String no,String name,String sex,int age,int score) { sNo=no; sName=name; sSex=sex; sAge=age; sScore=score; sSum+=sScore; sNum++;} String getNo() { return sNo; } String getName() { return sName; } String getSex() { return sSex; } int getAge() { return sAge; } int getScore() { return sScore; } static double average(){ return(double)sSum/sNum;} void print(){ System.out.println("学号:"+sNo+" 姓名:"+sName+" 性别:"+sSex+" 年龄:"+sAge+" 成绩:"+sScore); } public static void main(String[] args) { Student st1 = new Student("15scujcc01","张三","男",19,94); Student st2 = new Student("15scujcc02","李四","男",20,85); Student st3 = new Student("15scujcc03","王五","女",18,96); System.out.println("学生信息:"); st1.print(); st2.print(); st3.print(); System.out.println("所有学生的平均成绩:"+ Student.average()); } }