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java考试代码话题已于 2025-08-09 00:24:38 更新
import java.io.*;import java.util.*;public class ReadTestquestion{ String filename="", correctAnswer="", testContent="" , selection="" ; int score=0; long time=0; boolean 完成考试=false; File f=null; FileReader in=null; BufferedReader 读取=null; public void setFilename(Str...
public static void main(String args[]) {int num=0;//保存总成绩for(int i=1;i
//第20题public class Printer extends Output implements Product{Printer(String name) {super(name);}public static void main(String[] args) {Printer p=new Printer("路由器");p.in();p.out();}@Overridepublic void in() {System.out.println(name+"接受信号!");}}interface Product{vo...
以下是Java中常见的30道例题及其代码思路简述:计算数组中奇数和偶数的个数并求和:遍历数组,使用if语句判断奇偶性,分别计数并求和。在三个数中找出最大值:使用ifelse或三元运算符比较三个数的大小。筛选并打印特定数据:遍历数组,使用条件判断过滤满足条件的元素并打印。输入0到7的数字,判断对应星期...
代码如下,Rectangle类在java.lang包下有同名类,如需引包请注意,望采纳。补充:Rectangle类 package com.baidu.question183173554138589044;public class Rectangle { private double width; private double height; public void setRectangle(int w, int h){ if(w>0 && h>0){ width ...
1L已经做得很好了 2.我的东西是私有且管制且安全 --考察数据封装 JAVA的数据封装 class A{ private String name;private int age;public A(){ super();} public void setName(String name){ this.name = name;} public void setAge(int age){ if(age>0&&age
2、代码:数字按钮NumberButton类如下:import java.awt.import java.awt.event.import javax.swing.public class NumberButton extends Button.{ int number.public NumberButton(int number).{ super(""+number).this.number=number.setForeground(Color.blue).} public int getNumber().{ return ...
import java.awt.BorderLayout;import java.awt.GridLayout;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.JTextField;public class Login extends ...
看代码:import java.io.BufferedReader;import java.io.InputStreamReader;import java.io.PrintWriter;public class Demo {// 获得系统换行符private static final String LINE_SEP = System.getProperty("line.separator");public static void main(String[] args) throws Exception {try (BufferedReader...
public class Point {private double x, y;public Point(double x, double y){this.x = x;this.y = y;}public double distance(Point p){return Math.sqrt((p.x - x) * (p.x - x) + (p.y - y) * (p.y - y));}public String toString(){return "(" + x +", "+ y ...