Java实验03

Code1

package q3;public class Method01{public static void main(String[] args) {class Student{String name;String StuID;public Student(String name,String StuID){this.name=name;this.StuID=StuID;}public void speak(String name, String stuID) {//输出学号与姓名System.out.println("姓名："+name);System.out.println("学号："+stuID);}public int num(String stuID,int start){//截取学号String resultStr = stuID.substring(start);return Integer.parseInt(resultStr);}public int getSum(String n) {//获取学号后三位的遍历和int i;int sum=0;for (i = 0; i <= num(n,9); i++) {sum=sum+i;}return sum;}public int getProduct(String stuID){//获取学号后两位的乘积和return (num(stuID,10)/10)*num(stuID,11);}}Student lienci=new Student("蔡徐坤","233411420110");lienci.speak(lienci.name,lienci.StuID);System.out.println("遍历和："+lienci.getSum(lienci.StuID));System.out.println("乘积  ："+lienci.getProduct(lienci.StuID));}}