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跳马问题java代码 跳马游戏规则规则
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数学表达式子s=x2+1对应的Java表达式是什么?
在Java中，可以使用以下代码：
double s = Math.pow(x, 2) + 1;
在这个代码中，Math.pow()方法用于计算x的平方，然后将结果与1相加，得到最终的结果，该结果被存储在变量s中。需要注意的是，该代码中的变量s和x都应该提前定义和初始化
求JAVA实验代码
public interface Student {
// 该方法用于表示不同阶段的学生在学习数学课程时的不同内容
public abstract void studyMath();
// 该方法用于表示不同阶段的学生的英语水平
public abstract void studyEnglish();
}
public class PrimarySchoolStudent implements Student {
@Override
public void studyMath() {
System.out.println("小学生在学习数学课程时跳马问题java代码，主要学习加减法跳马问题java代码，数学表达式等基础知识。");
}
@Override
public void studyEnglish() {
System.out.println("小学生在学习英语时跳马问题java代码，主要学习词汇跳马问题java代码，基本句型跳马问题java代码，基本语法等基础知识。");
}
}
public class MiddleSchoolStudent implements Student {
@Override
public void studyMath() {
System.out.println("中学生在学习数学课程时，主要学习初等函数，代数方程等基础知识。");
}
@Override
public void studyEnglish() {
System.out.println("中学生在学习英语时，主要学习阅读理解，听力理解，口语交流等能力。");
}
}
public class CollegeStudent implements Student {
@Override
public void studyMath() {
System.out.println("大学生在学习数学课程时，主要学习高等数学，概率论，数值计算等专业知识。");
}
@Override
public void studyEnglish() {
System.out.println("大学生在学习英语时，主要学习专业英语，商务英语，英文写作等能力。");
}
}
public class Main {
public static void main(String[] args) {
求java题目代码
public static void main(String[] args) {
String[] suit={"黑桃","红桃","樱花","方块"};
String[] rank={"A","2","3","4","5","6","7","8","9","10","J","Q","K"};
ArrayList cards =new ArrayList();
cards.add("大王");
cards.add("小王");
for (int i = 0; i suit.length; i++)
for (int j = 0; j rank.length; j++)
cards.add(suit[i]+rank[j]);
for (int i = 0; i 54; i++) {
if(i==1 || (i-2 + 1)%13==0)
System.out.println(cards.get(i));
else
System.out.print(cards.get(i)+" ");
}
}
JAVA难题，写出以下代码：
public class Du {
public static void main(String[] args) {
int num[] = {1,3, 5,7, 11, 389, 254};
String str = arrayToStr(num);
System.out.println(str);
}
private static String arrayToStr(int[] num) {
StringBuilder sb = new StringBuilder();
for(int i = 0; i num.length; i++){
sb.append(num[i]);
sb.append(",");
}
return sb.substring(0, sb.length()-1);
}
}
----------------
1,3,5,7,11,389,254
求java的代码！
public class Room {
private int roomID;
private double roomArea;
private String address;
public int getRoomID() {
return roomID;
}
public void setRoomID(int roomID) {
this.roomID = roomID;
}
public double getRoomArea() {
return roomArea;
}
public void setRoomArea(double roomArea) {
this.roomArea = roomArea;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public Room(){};
public Room(int roomID){
this.roomID = roomID;
};
public Room(int roomID, double roomArea){
this.roomID = roomID;
this.roomArea = roomArea;
}
public Room(int roomID, double roomArea, String address){
this.roomID = roomID;
this.roomArea = roomArea;
this.address = address;
}
public String getDetails() {
return "Room [房号:" + roomID + ", 面积:" + roomArea + ", 地址:" + address + "]";
}
public static void main(String[] args) {
Room room1 = new Room();
Room room2 = new Room(1);
Room room3 = new Room(2, 100);
Room room4 = new Room(3, 120, "china");
System.out.println(room1.getDetails() + "\r\n" + room2.getDetails() + "\r\n" + room3.getDetails() + "\r\n" + room4.getDetails());
}
}
这么简单的不能自己写吗
使用Java做一个走马灯，源代码？
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.HeadlessException;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JViewport;
import javax.swing.Timer;
public class Test84 extends JFrame {
private Timer timer;
private JLabel view;
private JViewport window;
public static void main(String[] args)
{
JFrame frm = new Test84("跑马灯");
frm.setDefaultCloseOperation(EXIT_ON_CLOSE);
frm.pack();
frm.setVisible(true);
}
public Test84(String title) throws HeadlessException
{
super(title);
initComponents();
addComponentListener(new ComponentAdapter() {
public void componentResized(ComponentEvent e)
{
anchor = new Point();
anchor.x = -window.getExtentSize().width;
timer.start();
}
});
timer = new Timer(100, new ActionListener() {
public void actionPerformed(ActionEvent e)
{
animate();
}
});
timer.setInitialDelay(0);
}
private void initComponents()
{
String s = JOptionPane.showInputDialog(null, "请输入要实现效果的文字:");
view = new JLabel(s);
view.setFont(Font.decode("Dialog-BOLD-36"));
view.setForeground(Color.BLUE);
window = new JViewport();
window.setView(view);
getContentPane().add(window);
}
Point anchor;
private void animate()
{
Dimension extSize = window.getExtentSize();
Dimension viewSize = view.getPreferredSize();
anchor.x += 5;//设置移动的速度
window.setViewPosition(anchor);
if (anchor.x viewSize.width)
anchor.x = -extSize.width;
}
}
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