java編學生成績表情

『壹』 如何用Java實現「學生成績輸入」問題

import java.util.Scanner;
public class Student{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
System.out.println("請輸入學生的人數....");
int num = sc.nextInt();
int[] arr = new int[num];
double[] chengji_arr = new double[num]; //存放成績的
String[] String_arr = new String[num]; //存放姓名的
String chengjis = "";
String names = "";
for(int i = 0; i < arr.length && i < String_arr.length && i < chengji_arr.length; i++){
arr[i] = i;
int s = 0;
Students st = new Students();
System.out.println("請輸入第"+(arr[i]+1)+"個學生的序號！");
st.setId(sc.nextInt());
System.out.println("請輸入第"+(arr[i]+1)+"個學生的姓名！");
st.setName(sc.next());
System.out.println("請輸入第"+(arr[i]+1)+"個學生的成績！");
st.setChengji(sc.nextDouble());
String_arr[i] = st.getName(); //保存成績
chengji_arr[i] = st.getChengji();
}
int max = 0;
int tmp = 0;
for (int i = 0; i < chengji_arr.length; i++) {
max = i;
for (int j = i + 1; j < chengji_arr.length; j++) {
if (chengji_arr[max] < chengji_arr[j])
max = j;// 記下較大數位置，再次比較，直到最大
}
if (i != max) {
tmp = (int)chengji_arr[i];
chengji_arr[i] = chengji_arr[max];
chengji_arr[max] = tmp;
}

}
for (int i = 0; i < chengji_arr.length; i++)
System.out.print("成績為："+chengji_arr[i] + " ");
}
}
class Students{
private int id;
private String name;
private double chengji;
public void setId(int id){
this.id = id;
}
public int getId(){
return id;
}
public void setName(String name){
this.name = name;
}
public String getName(){
return name;
}
public void setChengji(double chengji){
this.chengji = chengji;
}
public double getChengji(){
return chengji;
}
}
//代碼沒有交換學生數組下標，麻煩提問者再修改一下吧，真的要睡了，明天繼續上班，抱歉，只能幫你到這里了。

『貳』 java編寫一個學生成績管理，學生屬性學號，姓名，成績。功能：創建，保存，查詢（按學號，按姓名）

思路：
1.一個界面類，供用戶輸入數據和選擇功能
2.一個操作資料庫的類，把從界版面類傳來的數據寫進數權據庫中，並提供一些功能，創建、保存、查詢；
3.資料庫文件，保存學生信息；
4.建一個工具類，裡面封裝一些操作資料庫的固有方法。

『叄』 怎樣用java編寫程序實現學生成績等級劃分,輸入考試成績,程序會相應輸出成績等級

import java.util.Scanner;
public class test {
public static void main(String[] args) {
Scanner x = new Scanner(System.in);
System.out.println("請輸入成績");
int a=x.nextInt();
int n=a/10; //百分制轉換為等第
switch(n){
case 10: //表示如果n=10，也就是一百分，輸出A
case 9:
System.out.println("A");
break;
case 8:
System.out.println("B");
break;
case 7:
System.out.println("C");
break;
case 6:
System.out.println("D");
break;
case 5:
case 4:
case 3:
case 2:
case 1:
case 0:
System.out.println("FAIL"); //低於六十分的輸出不及格 FAIL
break;
default:System.out.println(" 請輸入一個正確的成績"); //輸入的不是百分制，報錯
}
}
}

『肆』 能幫我用java寫個學生成績表嗎急用

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class Student {

/**
* 學生成績表
*/
private String name;//學生姓名

private double score;//學生成績
public Student(){}
public Student(String name,double score){
.name=name;

this.score=score;
}

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;
}
//主函數
public static void main(String[] args) {
List<Student> list=new ArrayList<Student>();
Student[] stu=new Student[5];
//為學生對象賦值
for(int i=0;i<5;i++){
stu[i]=new Student();
Scanner sc=new Scanner(System.in);
System.out.print("請輸入學生姓名:");
stu[i].setName(sc.next());
System.out.print("請輸入學生成績:");
stu[i].setScore(sc.nextDouble());
list.add(stu[i]);
}
//列印輸出學生成績表
System.out.println("姓名\t成績");
for(Student s:list){
System.out.println(s.getName()+"\t"+s.getScore());
}
}
}

『伍』 求java編成的「學生成績管理」的小程序

import java.util.Arrays;
import java.util.Scanner;

public class SearchRecord {
static String[] name = { "張三", "李四", "王五", "宋六", "楊七", "羅八" };

static String[] subject = { "java", "c++", "oracle", "mysql", "jsp" };

static int[][] score = { { 84, 75, 69, 87, 54 }, { 90, 86, 81, 72, 59 },
{ 64, 92, 84, 86, 85 }, { 46, 58, 68, 67, 60 },
{ 97, 92, 96, 93, 91 }, { 82, 69, 64, 75, 73 } };

public static void main(String[] args) {
System.out.println("請輸入：");
Scanner sca = new Scanner(System.in);
String str = sca.next();
if (str.equals("AVGCOU")) {
String s = sca.next();
avgcou(s);
} else if (str.equals("AVGSTU")) {
String s = sca.next();
avgstu(s);
} else if (str.equals("SORT")) {
String s = sca.next();
if (s.equals("sum"))
sortSum();
else
sortSubject(s);
} else if (str.equals("SUM"))
{
String s = sca.next();
sumScore(s);
} else if (str.equals("GET"))
{
String s1 = sca.next();
String s2 = sca.next();
getScore(s1,s2);
}
}

public static void avgcou(String s) {
int index = 0;
int sum = 0;
float avg = 0;
for (int i = 0; i < subject.length; i++) {
if (subject[i] .equals(s) ) {
index = i;
break;
}
}
System.out.println(index);
for (int i = 0; i < name.length; i++) {
sum += score[i][index];
}
avg = sum / name.length;
System.out.println("課程" + s + "的平均分是：" + avg);
}

public static void avgstu(String s) {
int index = 0;
int sum = 0;
float avg = 0;
for (int i = 0; i < name.length; i++) {
if (name[i] .equals(s) ) {
index = i;
break;
}
}
for (int i = 0; i < subject.length; i++) {
sum += score[index][i];
}
avg = sum / name.length;
System.out.println("學生" + s + "的平均分是：" + avg);
}

public static void sortSum() {
int temp = 0;
String s;
int[] sum = new int[6];
for (int i = 0; i < name.length; i++) {
for (int j = 0; j < subject.length; j++) {
sum[i] += score[i][j];
}
}
for (int i = 0; i < sum.length - 1; i++) {
for (int j = i + 1; j < sum.length; j++) {
if (sum[i] > sum[j]) {
temp = sum[i];
sum[i] = sum[j];
sum[j] = temp;
s = name[i];
name[i] = name[j];
name[j] = s;
}
}
}
System.out.println("按照總分進行升序排列的順序是: ");
for (int i = 0; i < sum.length; i++) {
System.out.print(name[i] + ":");
System.out.println(sum[i]);
}
}

public static void sortSubject(String s) {
int index = 0;
int temp;
String str;
for (int i = 0; i < subject.length; i++) {
if (subject[i].equals(s) ) {
index = i;
break;
}
}
//System.out.println(index);
for (int i = 0; i < name.length - 1; i++) {
for (int j = i + 1; j <name.length; j++) {
if (score[i][index] > score[j][index]) {
temp = score[i][index];
score[i][index] = score[j][index];
score[j][index] = temp;
str = name[i];
name[i] = name[j];
name[j] = str;
}
}
}
System.out.println(subject[index]+"成績按升序排列的順序是: ");
for (int i = 0; i < name.length; i++) {
System.out.print(name[i] + ":");
System.out.println(score[i][index]);
}
}
public static void sumScore(String s)
{
int index=0;
int sum=0;
for (int i = 0; i < name.length; i++) {
if (name[i].equals(s) ) {
index = i;
break;
}
}
for (int i = 0; i<subject.length;i++)
{
sum+=score[index][i];
}
System.out.print(name[index]+"同學的總分是: ");
System.out.println(sum);
}
public static void getScore(String s1,String s2)
{
int index1 = 0;
int index2 = 0;
for (int i = 0; i < name.length; i++) {
if (name[i].equals(s1) ) {
index1 = i;
break;
}
}
for (int i = 0; i < subject.length; i++) {
if (subject[i].equals(s2) ) {
index2 = i;
break;
}
}
System.out.print(name[index1]+"同學"+subject[index2]+"的成績是: ");
System.out.println(score[index1][index2]);
}
}

自己寫的

『陸』 java編程，用switch語句編寫一個學生成績等級評定，使用鍵盤讀取分數（0-100之間）學生成

importjava.util.Scanner;
publicclassGetGrade{
publicstaticvoidmain(String[]args){
System.out.println("請輸入成績(1-100)");
Scannersc=newScanner(System.in);
intscore=sc.nextInt();
if(score<0||score>100){
System.out.println("對不起，你輸入有誤");
return;
}
System.out.println("你獲得了："+getGrade(score));
}
publicstaticStringgetGrade(inti){
Stringret=null;
switch(i/10){
case10:
ret="A";
break;
case9:
ret="A";
break;
case8:
ret="B";
break;
case7:
ret="C";
break;
case6:
ret="D";
break;
default:
ret="E";
break;
}
returnret;
}
}

『柒』 （java）編寫一個學生成績分析程序

//學生類
publicclassStudent{
	privateStringNO;
	privateStringname;
	privateintmath;
	privateintphysics;
	privateintenglish;
	privateinttotal=0;
	publicStudent(StringNO,Stringname,intmath,intphysics,intenglish){
		this.NO=NO;
		this.name=name;
		this.math=math;
		this.physics=physics;
		this.english=english;
		total=math+physics+english;
	}
	publicStringgetNO(){
		returnNO;
	}
	publicvoidsetNO(StringnO){
		NO=nO;
	}
	publicStringgetName(){
		returnname;
	}
	publicvoidsetName(Stringname){
		this.name=name;
	}
	publicintgetMath(){
		returnmath;
	}
	publicvoidsetMath(intmath){
		this.math=math;
	}
	publicintgetPhysics(){
		returnphysics;
	}
	publicvoidsetPhysics(intphysics){
		this.physics=physics;
	}
	publicintgetEnglish(){
		returnenglish;
	}
	publicvoidsetEnglish(intenglish){
		this.english=english;
	}
	publicintgetTotal(){
		returntotal;
	}
	publicvoidsetTotal(inttotal){
		this.total=total;
	}
	@Override
	publicStringtoString(){
		return"[學號="+NO+",姓名="+name+",數學成績="+math+",物理成績="+physics+",英語="
				+english+",總分="+total+"]";
	}
	
	
}

//排序
<Student>{

		@Override
		publicintcompare(Studento1,Studento2){
			
			returno1.getTotal()<o2.getTotal()?1:o1.getTotal()==o2.getTotal()?0:-1;
		}
		
}

publicclassTest{

	publicstaticvoidmain(String[]args){
		Stringfilename="res/student.txt";
		System.out.println("讀取"+filename+"文件的數據");
		List<Student>result=readStudnetInfoFromFile(filename);
		
		//排序
		result.sort(newCompareStudent());
		
		System.out.println("排序輸出");
		for(Studentstudent:result){
			System.out.println(student);
		}
		System.out.println();
		//不及格
		System.out.println("數學不及格");
		intnums=0;
		for(Studentstudent:result){
			if(student.getMath()<60){
				System.out.println(student.getName()+"數學成績不及格");
				nums++;
			}
		}
		System.out.println("數學不及格總共有"+nums+"人");
	}

	
	
	//從文件中讀取數據
	privatestaticList<Student>readStudnetInfoFromFile(Stringfilename){
		Filefile=newFile(filename);
		if(!file.exists()){
			returnnull;
		}
		List<Student>result=newArrayList<>();
		BufferedReaderbr=null;
		FileReaderfr=null;
		try{
			fr=newFileReader(file);
			br=newBufferedReader(fr);
			Stringline=null;
			while((line=br.readLine())!=null){
				String[]infos=line.split("_");
				Studentstu=newStudent(infos[0],infos[1],Integer.parseInt(infos[2]),Integer.parseInt(infos[3]),
						Integer.parseInt(infos[4]));
				result.add(stu);
			}

		}catch(FileNotFoundExceptione){
			e.printStackTrace();
		}catch(IOExceptione){
			e.printStackTrace();
		}finally{

			try{
				if(br!=null){
					br.close();
				}
				if(fr!=null){
					fr.close();
				}
			}catch(IOExceptione){
				e.printStackTrace();
			}

		}

		returnresult;
}


//數據文件注意文件路徑
1_張三_60_70_80
2_李四_58_58_73
3_王二_63_75_85
4_莉莉_46_75_88
5_小明_85_76_56

『捌』 java ！ 學生成績編程

publicstaticvoidprintResult(){
	Scannerinput=newScanner(System.in);
	System.out.print("Enterstudent'sname:");
	Stringname=input.next();
	System.out.print("Enterstudent'sfaculty:");
	Stringfaculty=input.next();
	System.out.print("Enterstudent'syear:");
	Stringyear=input.next();
	System.out.print("Enterstudent'sgrades:");
	Doubleaverage=0.0;
	Stringgrade=input.next();
	//保存各等級的成績數量
	Integer[]results=newInteger[]{0,0,0,0,0};
	if(grade!=null||grade!=""){
		//保存輸入的成績
		String[]grades=grade.split(",");
		Doublesum=0.0;
		for(inti=0;i<grades.length;i++){
			//將字元串轉double類型
			Doubledg=Double.parseDouble(grades[i]);
			sum+=dg;
			if(dg<50){
				//F
				results[0]++;
			}elseif(50<=dg&&dg<=64){
				//P
				results[1]++;
			}elseif(65<=dg&&dg<=74){
				//C
				results[2]++;
			}elseif(75<=dg&&dg<=84){
				//D
				results[3]++;
			}elseif(85<=dg&&dg<=100){
				//HD
				results[4]++;
			}
		}
		average=sum/grades.length;
	}
	System.out.println(name+"-"+faculty+"-"+year);
	System.out.println("WAM:"+average);
	for(inti=0;i<results.length;i++){
		switch(i){
			case0:System.out.println(results[i]+"xF");break;
			case1:System.out.println(results[i]+"xP");break;
			case2:System.out.println(results[i]+"xC");break;
			case3:System.out.println(results[i]+"xD");break;
			case4:System.out.println(results[i]+"xHD");break;
		}
		
	}
	
}

『玖』 急！急1急！用java編寫簡單的學生成績錄入程序

User
u
=
new
User();
List<User>
list
=
new
ArrayList<User>();
Scanner
in
=
new
Scanner(System.in);
System.out.println("請輸入學生總數：");
int
t
=
in.nextInt();
int
math
=
0;
int
pc
=
0;
int
sql
=
0;
for(int
i=1;i<=t;i++){
u.setId(i);
System.out.println("請輸入第"
+
i
+
"個人的數學成績");
math
=
in.nextInt();
u.setMath(math);
System.out.println("請輸入第"
+
i
+
"個人的計算專機成績");
pc
=
in.nextInt();
u.setPc(pc);
System.out.println("請輸入第"
+
i
+
"個人的資料庫屬成績");
sql
=
in.nextInt();
u.setSql(sql);
list.add(u);
}

『拾』 用Java編一個學生成績處理程序 要求：1）根據學生學號輸入學生成績

只有一個要求嗎？如果是只有一個要求的話：根據學號輸入成績。這並不能處理學生成績。最多隻能進行數據的保存，然後可以根據學號來查詢。真要帶到處理的話，應該有求最高分，最低分，平均分，排序等功能。