閱讀以下說明和Java代碼，將應(yīng)填入 (n) 處的字句寫在答題紙的對應(yīng)欄內(nèi)。

package?sleest;

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import?java.util.Vector;

public?class?JavaMain?{

世指??static?private?final?int?ARRAY_SIZE?=?6;

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

VectorInteger?theVector?=?new?VectorInteger();

兆返判for?(int?cEachItem?=?0;?cEachItem??ARRAY_SIZE;?cEachItem++)?{

theVector.add(cEachItem);

}

showVector(theVector);

theVector.removeElementAt(3);

showVector(theVector);

}

public?static?void?showVector(VectorInteger?theVector)?{

if?(theVector.isEmpty())?{

System.out.println("theVector?is?empty.");

return;

}

族改???for?(int?loop?=?0;?loop??theVector.size();?loop++)?{

System.out.print(theVector.get(loop));

System.out.print(",?");

}

System.out.println();

}

}

0, 1, 2, 3, 4, 5,

0, 1, 2, 4, 5,

用java swing來編寫一個(gè)答題器的圖形界面該怎么編寫？下面附上我的程序

你可以直接用Eclipse或者NetBeans的圖形界面，之后添加組件的響搭蘆應(yīng)襲拍就可以啦，很方便的。。。拍枝羨。

這兩道題代碼怎么寫java？

創(chuàng)建一個(gè)名字為“ReportCard”的類，然后用下邊的內(nèi)容全部替換掉，你會(huì)成為全班最亮的仔。

import java.util.HashMap;

/**

* 學(xué)生成績單

*/

public class ReportCard {

public static void main(String[] args) {

ReportCard reportCard = new ReportCard("張三", "070602213");

reportCard.set("語文", 80.0);

reportCard.set("數(shù)學(xué)", 59.5);

reportCard.set("英語山簡", 66.0);

reportCard.set("java", 80, 99.0);

reportCard.set("數(shù)據(jù)庫", 80, 66.0);

reportCard.set("毛概", null);

System.out.println(reportCard.getStudentName() + "語文分?jǐn)?shù):" + reportCard.get("語文"));

System.out.println(reportCard.getStudentName() + "數(shù)學(xué)考核結(jié)果:" + (reportCard.isPassed("數(shù)學(xué)") ? "合格" : "不合格"));

System.out.println(reportCard.getStudentName() + "期末是否掛科：" + (reportCard.isAllPassed() ? "否" : "是"));

}

//芹芹 學(xué)生姓嫌唯畢名

private String studentName;

// 學(xué)生學(xué)號

private String studentNumber;

// 成績單

private HashMapString, CourseResult cards = new HashMap();

public ReportCard() {

}

public ReportCard(String studentName, String studentNumber) {

this.studentName = studentName;

this.studentNumber = studentNumber;

}

public Double get(String courseName){

CourseResult courseResult = cards.get(courseName);

return courseResult == null ? Double.NaN : courseResult.getStudentScore();

}

public void set(String courseName, Double studentScore){

CourseResult courseResult = new CourseResult(courseName, studentScore);

cards.put(courseName, courseResult);

}

public void set(String courseName, double passMark, Double studentScore){

CourseResult courseResult = new CourseResult(courseName, passMark, studentScore);

cards.put(courseName, courseResult);

}

public boolean isPassed(String courseName){

return cards.get(courseName).isPassed();

}

public boolean isAllPassed(){

for(CourseResult cr : cards.values()){

if ( ! cr.isPassed()) {

return false;

}

}

return true;

}

public String getStudentName() {

return studentName;

}

public String getStudentNumber() {

return studentNumber;

}

public void setStudentName(String studentName) {

this.studentName = studentName;

}

public void setStudentNumber(String studentNumber) {

this.studentNumber = studentNumber;

}

/**

* 課程

*/

class Course{

// 課程名稱

protected String courseName;

// 及格分

protected double passMark = 60;

public Course(String courseName, Double passMark) {

this.courseName = courseName;

if ( passMark != null) {

this.passMark = passMark;

}

}

}

/**

* 課程成績

*/

class CourseResult extends Course{

// 學(xué)生成績

private Double studentScore;

public CourseResult(String courseName, Double studentScore) {

this(courseName, null, studentScore);

}

public CourseResult(String courseName, Double passMark, Double studentScore) {

super(courseName, passMark);

this.studentScore = studentScore == null ? Double.NaN : studentScore;

}

public boolean isPassed(){

return studentScore = passMark;

}

public String getCourseName() {

return courseName;

}

public double getPassMark() {

return passMark;

}

public Double getStudentScore() {

return studentScore;

}

}

（急）怎么用JAVA做這個(gè)題啊。求大神~

代碼如下,希望能讓帆給你思路：

public class test {

public static void main(String[] args){

int score[]=new int[30];

int sum=0;

for(int i=0;iscore.length;i++)

{

//存儲(chǔ)隨機(jī)坦州雹的分?jǐn)?shù)到score數(shù)組中

score[i]=(int) (Math.random()*99+1);

//同事將分?jǐn)?shù)加給sum

sum+=score[i];

}

System.out.println("班級平均跡譽(yù)分："+sum*1.0/30);

}

}

新聞名稱：java答題卡編輯代碼 java答題卡編輯代碼怎么寫
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