java練習(xí)題求完整代碼

按照題目要求編寫的用javaBean規(guī)范設(shè)計(jì)的學(xué)生類Student的Java程序如下

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需要?jiǎng)?chuàng)建user.java.test包,把Student.java文件和Test.java文件放入包中,編譯Student.java文件并且編譯運(yùn)行Test.java文件得到運(yùn)行結(jié)果

Student.java文件代碼如下

package user.java.test;

import java.io.Serializable;

public class Student implements Serializable{

private static final long serialVersionUID = 1L;

private String no;

private String name;

private double score;

public Student(){}

public Student(String no,String name,double score){

this.no=no;

this.name=name;

this.score=score;

}

public String getNo(){ return no;}

public void setNo(String no){ this.no=no;}

public String getName(){ return name;}

public void setName(String name){ this.name=name;}

public double getScore(){ return score;}

public void setScore(double score){ this.score=score;}

public String toString(){

return "學(xué)號:"+no+",姓名:"+name+",成績:"+score;

}

public static double getAvg(Student[] sArray){

double sum=0,avg;

for(int i=0;isArray.length;i++){

sum=sum+sArray[i].getScore();

}

avg=sum/sArray.length;

return avg;

}

}

Test.java文件代碼如下

package user.java.test;

public class Test{

public static void main(String[] args){

Student[] sArray=new Student[5];

sArray[0]=new Student("001","張三",89.5);

sArray[1]=new Student("002","李四",82.5);

sArray[2]=new Student("003","王五",93);

sArray[3]=new Student("004","趙六",73.5);

sArray[4]=new Student("005","孫七",66);

System.out.println("這些學(xué)生的平均分:"+Student.getAvg(sArray));

for(int i=0;isArray.length;i++){

System.out.println(sArray[i].toString());

}

}

}

java作業(yè)，求代碼，謝謝！

代碼如下：

package?com.sxl.gd.test;

public?class?Array?{

private?int?[]a?=?{1,2,3,4,5,6};

private?int?x1,x2,x3,x4,x5,x6;

private?void?aver()?{

int?sum?=?0;

for(int?i=0;ia.length;i++)?{

sum+=a[i];

}

System.out.println("平均數(shù)是："+(double)sum/(double)a.length);

}

public?Array()?{}

public?Array(int?x1,int?x2,int?x3,int?x4,int?x5,int?x6)?{

a[0]?=?x1;

a[1]?=?x2;

a[2]?=?x3;

a[3]?=?x4;

a[4]?=?x5;

a[5]?=?x6;

}

private?void?min()?{

int?min?=?a[0];

for(int?i=1;ia.length;i++)?{

if(a[i]min)?{

int?temp;

temp?=?a[i];

a[i]=min;

min?=?temp;

}

}

System.out.println("最小值是："+min);

}

private?void?max()?{

int?max?=?a[0];

for(int?i=1;ia.length;i++)?{

if(a[i]max)?{

int?temp;

temp?=?a[i];

a[i]=max;

max?=?temp;

}

}

System.out.println("最大值是："+max);

}

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

Array?array1?=?new?Array();

array1.aver();

array1.max();

array1.min();

Array?array2?=?new?Array(6,2,8,4,1,7);

array2.aver();

array2.max();

array2.min();

}

}

運(yùn)行結(jié)果如下：

Java的作業(yè)，新手不會(huì)做，求代碼

class Person{

string name;

int age;

string address;

public String toString(){

return "姓名："+name+" 家庭住址："+address+" 年齡:"+age;

}

public Person(string name,int age,string address){

this.name = name;

this.age = age;

this.address = address;

}

}

class Employee extends Person{

int num;

public Employee(string a,int b,string c,int n){

name = a;

age = b;

address = c;

num = n;

}

}

class Student extends Person{

public Student(string a,int b,string c){

name = a;

age = b;

address = c;

}

}

public class

剛?cè)腴T的java作業(yè)

代碼

或者：

package com.xinhua.test2;

public class Student {

int sno;

String name;

double chiness;

double math;

double english;

double three_sco;

double all_s;

public Student(int sno, String name, double chiness, double math, double english, double three_sco) {

this.sno = sno;

this.name = name;

this.chiness = chiness;

this.math = math;

this.english = english;

this.three_sco = three_sco;

}

@Override

public String toString() {

return "學(xué)號：" + sno + ", 名字：" + name + ", 語文成績：" + chiness + ", 數(shù)學(xué)成績：" + math + ", 英語成績："

+ english + "總成績："+(chiness+math+english+three_sco);

}

public static void main(String[] args) {

Student A=new Student(1, "張三", 118, 145, 114.5, 198);

Student B=new Student(2, "李四", 130,110.5,100,210);

Student C=new Student(3, "王五",142.5,120,87.5,245.5);

System.out.println("學(xué)生列表信息為：");

System.out.println(A.toString());

System.out.println(B.toString());

System.out.println(C.toString());

//

double a_scoAll=A.chiness+A.math+A.english+A.three_sco;

A.all_s=a_scoAll;

double b_scoAll=B.chiness+B.math+B.english+B.three_sco;

B.all_s=b_scoAll;

double c_sclAll=C.chiness+C.math+C.english+C.three_sco;

C.all_s=c_sclAll;

Student[] s_s={A,B,C};

System.out.println("按總成績從大到小排序?yàn)?);

Student temp;

for(int i=0;is_s.length;i++){

for(int j=1;js_s.length-i;j++){

if(s_s[j-1].all_s s_s[j].all_s){

temp=s_s[j-1] ;

s_s[j-1] =s_s[j];

s_s[j]=temp;

}

}

}

for(int i=0;is_s.length;i++){

System.out.println("第"+(i+1)+"名為："+s_s[i].toString());

}

}

}

望采納

給段最簡單的java代碼 讓我新手看一下

最簡單的java代碼肯定就是這個(gè)了，如下：

public class MyFirstApp

{

public static void main(String[] args)

{

System.out.print("Hello world");

}

}

“hello world”就是應(yīng)該是所有學(xué)java的新手看的第一個(gè)代碼了。如果是零基礎(chǔ)的新手朋友們可以來我們的java實(shí)驗(yàn)班試聽，有免費(fèi)的試聽課程幫助學(xué)習(xí)java必備基礎(chǔ)知識(shí)，有助教老師為零基礎(chǔ)的人提供個(gè)人學(xué)習(xí)方案，學(xué)習(xí)完成后有考評團(tuán)進(jìn)行專業(yè)測試，幫助測評學(xué)員是否適合繼續(xù)學(xué)習(xí)java，15天內(nèi)免費(fèi)幫助來報(bào)名體驗(yàn)實(shí)驗(yàn)班的新手快速入門java，更好的學(xué)習(xí)java！

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