java期末考試編程題怎麼打

❶ java考試，求編程題步驟！！！

題目一:

參考代碼

importjava.util.Scanner;
publicclassJiaFaDemo{
publicstaticvoidmain(String[]args){
intx=(int)(Math.random()*100);
inty=(int)(Math.random()*100);
System.out.println(x+"+"+y+"="+(x+y));//自動答題58+4=62

//System.out.print(x+"+"+y+"=");//人工輸入答題需要導入包importjava.util.Scanner;
//Scannerinput=newScanner(System.in);
//intz=input.nextInt();
//if(z==(x+y)){
//System.out.println("回答正確");
//}else{
//System.out.println("回答錯誤");
//}
}
}

輸出

58+4=62

題目二

publicclassJiShuDemo{
publicstaticvoidmain(String[]args){
intsum=0;
for(inti=1;i<=50;i++){
if(i%2!=0){//不能被2整除的數是奇數
sum+=i;
}
}
System.out.println("1~50間奇數和="+sum);
}
}

輸出

1~50間奇數和=625

❷ 這道java編程題怎麼做

import java.util.*;
class Test1{
public LinkedList res=new LinkedList();
public Scanner item=new Scanner(System.in);
}
class Test2 extends Test1{
private void calc(){
System.out.println("輸入4個字元");
for(int x=0;x<4;x++){
char tem=item.next().charAt(0);
if(Character.isUpperCase(tem)){
tem=Character.toLowerCase(tem);
res.add(tem);
}else if(Character.isLowerCase(tem)){
tem=Character.toUpperCase(tem);
res.add(tem);
}else if(Character.isDigit(tem)){
res.add(tem);
}else{
String str="other";
res.add(str);
}
}
for(Object y:res){
System.out.println(y);
}
}
public static void main(String[] args){
new Test2().calc();
}
}

❸ JAVA編程基礎題目，怎麼寫，求大神詳細指導，謝謝！

//代碼如下

import java.until.Scanner;

Class Test(){

float dc;//表示折扣

public static void main(String []arg0)

{

Scanner sca=new Scanner(System.in);

System.out.println(「請輸入是否為會員：是（y)/否（其他字元）」);

String a=sca.next();

System.out.println(「請輸入購物金額：」);

float b=sca.nextFloat();

//嵌套if代碼段

if(a.equal("y"))

{

if(b>=200) dc=0.75

else dc=8

}

else{

if(b>=100) dc=0.9

else dc=1

}

float count=b*dc;//實際支付金額

Sytem.out.println("實際支付："+count);//最後列印

}

}

❹ java編程題，期末考試的題，跪求，求大佬編寫一下

publicclassRunTest{
	privatestaticint[]arr={2,5,7,1,3,4,6,9,8};
	publicstaticvoidmain(String[]args){
		System.out.println("原始:"+Arrays.toString(arr));
		newThread(){
			publicvoidrun(){
				StringBuildersd=newStringBuilder();
				for(inta:arr){
					sd.append(a+"");
				}
				System.out.println("反轉:["+sd.reverse()+"]");
			}
		}.start();
		newThread(){
			publicvoidrun(){
				for(inti=0;i<arr.length-1;i++){
					for(intj=0;j<arr.length-i-1;j++){
						if(arr[j]>arr[j+1]){
							inttemp=arr[j];
							arr[j]=arr[j+1];
							arr[j+1]=temp;
						}
					}
				}
				System.out.println("冒泡:"+Arrays.toString(arr));
			}
		}.start();
	}
}

❺ JAVA編程題！

//把你的那個表作成test3.txt放到D盤根，跑程序就好了
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;

public class MyTest3 {
List stuInfoList = new ArrayList();
public MyTest3(){
printResult();
}
public void readFile() {
try {
BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream("d:\\test3.txt")));
String line = "";
int i=0;
while ((line = br.readLine()) != null) {
if(i++>0){ //略過頭上的漢字行
StudentInfo student = new StudentInfo(line.split(" "));
stuInfoList.add(student);
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
class StudentInfo implements Comparable{
public int stuId;
public double pings;
public double qizhong;
public double qimo;
public double bishi;
public double zhongFeng;
public StudentInfo(){};
public StudentInfo(String[] info){
this.stuId = Integer.parseInt(info[0]);
this.pings = Integer.parseInt(info[1]);
this.qizhong = Integer.parseInt(info[2]);
this.qimo = Integer.parseInt(info[3]);
this.bishi = Integer.parseInt(info[4]);
this.zhongFeng = pings*0.1+qizhong*0.25+qimo*0.15+bishi*0.5;
}
public String getPingJunFeng(int size){
return pings/size +" "+qizhong/size+" "+qimo/size+" "+bishi/size+" "+zhongFeng/size;
}
public String toString(){
return stuId + " " +pings + " "+qizhong+" "+qimo+" "+bishi+" "+zhongFeng;
}
public int compareTo(Object arg0) {
StudentInfo info = (StudentInfo)arg0;
return (int)(info.zhongFeng-this.zhongFeng);
}
}
public void printResult(){
readFile();
System.out.println("學號 平時 期中 期末 筆試 總評分");
for(Iterator it=stuInfoList.iterator();it.hasNext();){
System.out.println(it.next());
}
System.out.println("-----------80分以上---------------\r\n學號 總評分");
for(Iterator it=stuInfoList.iterator();it.hasNext();){
StudentInfo info = (StudentInfo)it.next();
if(info.zhongFeng>=80)
System.out.println(info.stuId + " "+info.zhongFeng);
}
System.out.println("-----------沒有及格---------------\r\n學號 總評分");
for(Iterator it=stuInfoList.iterator();it.hasNext();){
StudentInfo info = (StudentInfo)it.next();
if(info.zhongFeng<60)
System.out.println(info.stuId + " "+info.zhongFeng);
}
Collections.sort(stuInfoList);
System.out.println("-----------排序之後---------------\r\n學號 平時 期中 期末 筆試 總評分");
for(Iterator it=stuInfoList.iterator();it.hasNext();){
System.out.println(it.next());
}
StudentInfo pinjunfeng = new StudentInfo();
for(Iterator it=stuInfoList.iterator();it.hasNext();){
StudentInfo info = (StudentInfo)it.next();
pinjunfeng.bishi+=info.bishi;
pinjunfeng.pings+=info.pings;
pinjunfeng.qimo+=info.qimo;
pinjunfeng.qizhong+=info.qizhong;
pinjunfeng.zhongFeng+=info.zhongFeng;
}
System.out.println("-----------平均分---------------\r\n平時 期中 期末 筆試 總評分");
System.out.println(pinjunfeng.getPingJunFeng(stuInfoList.size()));
}
public static void main(String[] args) throws Exception {
new MyTest3();
}

}

❻ 大一編程入門java語言，這道題代碼怎麼打呢

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;

public class PainterPanel extends JPanel implements MouseListener{
int shape=-1; //圖案類型
Point[] point=new Point[2]; //記錄滑鼠拖動的起始點和終點

public PainterPanel(){
super(); //調用父類構造函數
this.setBackground(Color.white); //設置背景顏色
point[0]=new Point(-1,-1); //初始化變數
point[1]=new Point(-1,-1);
addMouseListener(this); //增加滑鼠事件
}

public void mouseReleased(MouseEvent e){ //滑鼠釋放事件
point[1]=new Point(e.getX(),e.getY()); //設置終點位置
repaint(); //重繪屏幕
}
public void mouseEntered(MouseEvent e){}
public void mouseExited(MouseEvent e){}
public void mouseClicked(MouseEvent e){}
public void mousePressed(MouseEvent e){ //滑鼠按下時事件
point[0]=new Point(e.getX(),e.getY()); //設置起始位置
}

public void paint(Graphics g){
super.paint(g);
switch (shape){ //根據shape繪制圖形
case 0:
g.drawLine(point[0].x,point[0].y,point[1].x,point[1].y); //繪線
break;
case 1:
int width=point[1].x-point[0].x;
int height=point[1].y-point[0].y;
g.drawOval(point[0].x,point[0].y,width,height); //繪橢圓
break;
case 2:
width=point[1].x-point[0].x;
height=point[1].y-point[0].y;
g.drawRect(point[0].x,point[0].y,width,height); //繪矩形
break;
}
}

public void drawShape(int shape){
this.shape=shape;
}
}

❼ java編程題目，明天考試用，急啊！！

第一題代碼太多了，這里不方便寫了
第二題還是比較簡單，只需要針對字元串每個字元遍歷（String.length），當然題目裡面要求用while循環，否則直接用一個方法就可以了。當然還是需要統計轉換的個數。這里給你寫個主要的內容吧，其他自己寫。
int i=0;
int count=0;
string str1;
while (i<str.length)
{
if (str.indexOf(i)>=97 && str.indexOf(i)<=123)
{
str1+=str.indexOf(i)-32;//這個地方不好，但是對於這個題目沒關系
count++;
}
else
{
str1+=str.indexOf(i);
}
}

第三題也不難，會定義數組就一定會，但是這個裡面也有問題，應為JAVA從鍵盤里讀入數據，好像沒那麼簡單，不過，這個題目裡面，這部分不寫也不會有太大問題。
public class Test
{
public static void main(string[] args)
{
int count= convert(args);//轉換成數值
String[] num=new String(count);
//遍歷
for (int i=0;i<num.count;i++)
{
//這裡面完成累加就可以了。
}
}
}

我只能給你這么多了，再給你答案就是害你了。努力吧

❽ java編程題目這個怎麼弄啊。不會啊求解答

Suansu.java
public class Suansu{
private int a;
private int b;

public Suansu(){ //構造函數 初始化a=10,b=5;
this.a=10;
this.b=5;

}
public int AddAB(){ //和
return a+b;
}
public int SubAB(){ //差
return a-b;
}
}
TestSuansu.java
public class TestSuansu{
public static void main(String[] args){
Suansu ss = new Suansu();
System.out.println("a + b = "+ ss.AddAB());
System.out.println("a - b = "+ ss.SubAB());
}
}

❾ java面向對象程序設計期末考試編程題！急！！！

===============================第一題==============================
import java.applet.Applet;
import java.awt.Color;
import java.awt.Label;

public class test extends Applet {

private Label label;

@Override
public void init() {
label=new Label("歡迎來到java世界！");
label.setBackground(Color.BLUE);
setBackground(Color.PINK);
add(label);
}

}
===============================第二題==============================
因為沒圖,所以自己設計的界面..

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;

public class test implements ActionListener {

private JFrame frame;
private JLabel label;
private JTextArea jt;
private JScrollPane jsp;
private JButton show;

public test() {
frame=new JFrame("Test");
label=new JLabel("顯示內容");
jt=new JTextArea(10,20);
jsp=new JScrollPane(jt);
show = new JButton("顯示給定內容");
JPanel panel=new JPanel();
panel.add(label);
panel.add(show);
frame.add(jsp,BorderLayout.NORTH);
frame.add(panel,BorderLayout.SOUTH);

show.addActionListener(this);
show();

}

public void show(){
frame.setLocation(200, 200);
frame.setSize(300, 260);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}

@Override
public void actionPerformed(ActionEvent e) {
label.setText(jt.getText());
}

public static void main(String[] args) {
new test().show();
}

}

❿ java的編程題，要把代碼答在卷子上要怎麼寫呢

{
privateintscore;
publicvoidsetScore(intscore){
this.score=score;
}
publicintgetScore(){
returnthis,score;
}
//show方法
publicvoidshow(){
System.out.println(this.getName()+":"+score);
}
//還要實現介面的其他方法
}

下面是測試單元：

@Test
public void test(){
Student s = new Student();
s.setName("sss");
s.setScore(88);
s.show();
}