java程序设计

public double average(double x[]){

double sum = 0; //储存总分数的变量

Arrayssort(x); //自动数字排序

for(int i = 1,i++,i<xlength-1){ //不带第一名和最后一名的循环

sum += x[i];

if(i ==xlength-1)

sum = sum / ( i-2); //当循环到头时处理sum 获取平均分

}

return sum; //返回

}

import javautilCalendar;

public class Student {

private String name;//姓名、、

private String sno;//学号

private String sex;//性别

private String sr;//出生年度 生日

public Student(String name,String sno,String sex,String sr){

thisname=name;

thissno=sno;

thissex=sex;

thissr=sr;

}

public String getName() {

return name;

}

public void setName(String name) {

thisname = name;

}

public String getSno() {

return sno;

}

public void setSno(String sno) {

thissno = sno;

}

public String getSex() {

return sex;

}

public void setSex(String sex) {

thissex = sex;

}

public String getSr() {

return sr;

}

public void setSr(String sr) {

thissr = sr;

}

public int getage(){

String[] temp=srsplit("/");

int year=IntegerparseInt(temp[0]);

int month=IntegerparseInt(temp[1]);

int day=IntegerparseInt(temp[2]);

int yyyy, mm, dd;

Calendar c = CalendargetInstance();

yyyy = cget(CalendarYEAR);

mm = cget(CalendarMONTH) + 1;

dd = cget(CalendarDAY_OF_MONTH);

return IntegervalueOf(yyyy)-IntegervalueOf(year);

}

public static void main(String[] args) {

Systemoutprintln("年龄为："+new Student("张三","00001","男","1986/01/22")getage());

}

}

import javautil;

public class Exam

{

public static void main(String[] args) throws Exception

{

Scanner sc=new Scanner(Systemin);

Systemoutprint("请输入点1的x，y坐标（空格分隔）：");

Position source=new Position(scnextDouble(),scnextDouble());

Systemoutprint("请输入点2的x，y坐标（空格分隔）：");

Position target=new Position(scnextDouble(),scnextDouble());

sourceshowPosition();

targetshowPosition();

Systemoutprintf("距离为：%1f",sourcegetDistance(target));

scclose();

}

}

class Position

{

Position(double x,double y)

{

thisx=x;

thisy=y;

}

void showPosition()

{

Systemoutprintf("(%1f,%1f)",x,y);

Systemoutprintln();

}

double getDistance(Position p)

{

return Mathsqrt((x-px)(x-px)+(y-py)(y-py));

}

private double x,y;

}

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