java代码大全求个JAVA输入输出完整代码

求一个简单的java代码

代码如下,每句都加了注释了,希望能帮到你.... import java.util.Scanner; public class Test { public static void main(String[] args) { String name;//保存姓名 int age;//保存年龄 Scanner in = new Scanner(System.in);//用于获取用户的输入 System.out.print("请输入您的姓名 ：");//提示用户输入姓名 name = in.nextLine();//提取用户输入的姓名 System.out.print("请输入您的年龄 ：");//提示用户输入年龄 age = in.nextInt();//提取用户输入的年龄 System.out.println("姓名 ：" + name);//显示用户的姓名 System.out.println("年龄 ： " + age);//显示用户的年龄 } }

java语言代码完整的代码

.shijie.test; import java.util.ArrayList; import java.util.List; import java.util.Scanner; public class test1 { static mproduct m1 = new mproduct(); static mproduct m2 = new mproduct(); static mproduct m3 = new mproduct(); public static void main(String[] args) { // 初始话数据 GetList(); System.out.println("***************"); System.out.println("请选择购买的商品编号"); System.out.println(m1.id + "." + m1.name + " " + m2.id + "." + m2.name + " " + m2.id + "." + m2.name + " "); System.out.println("***************"); System.out.println("请输入商品编号:"); Scanner s = new Scanner(System.in); int int1 = s.nextInt(); if (int1 == 1) { System.out.println(m1.name + " " + m1.price); } else if (int1 == 2) { System.out.println(m2.name + " " + m2.price); } else if (int1 == 3) { System.out.println(m3.name + " " + m3.price); } System.out.println("是否继续:"); while (new Scanner(System.in).next().equals("y")) { System.out.println("请输入商品编号:"); Scanner s2 = new Scanner(System.in); int int2 = s.nextInt(); if (int1 == 1) { System.out.println(m1.name + " " + m1.price); } else if (int2 == 2) { System.out.println(m2.name + " " + m2.price); } else if (int2 == 3) { System.out.println(m3.name + " " + m3.price); } System.out.println("是否继续:"); } } static class mproduct { int id; String name; double price; } static void GetList() { m1.id = 1; m1.name = "T血"; m1.price = 245.0; m2.id = 2; m2.name = "网球鞋"; m2.price = 570.0; m3.id = 1; m3.name = "网球拍"; m3.price = 247.0; } }

求一个java代码

运行过了，效果绝对让你满意！呵呵…… 说明： 要在E:目录下放置好“头像6.jpg”和“头像5.jpg”作为回答正确、回答错误时候要显示的图片。

（当然啦，你放在项目的根目录下都可以，只要稍微改一下那个路径就可以了） import java.awt.BorderLayout; import javax.swing.JPanel; import javax.swing.JFrame; import java.awt.Dimension; import javax.swing.JLabel; import java.awt.Rectangle; import javax.swing.JRadioButton; import javax.swing.ImageIcon; import javax.swing.*; public class EGshiti extends JFrame { private static final long serialVersionUID = 1L; private JPanel jContentPane = null; private JLabel jLabel = null; private JLabel jLabel1 = null; private JRadioButton jRadioButton = null; private JRadioButton jRadioButton1 = null; private JRadioButton jRadioButton2 = null; private JLabel jLabel2 = null; private JLabel jLabel3 = null; private ButtonGroup bg=null; /** * This is the default constructor */ public EGshiti() { super(); initialize(); } /** * This method initializes this * * @return void */ private void initialize() { this.setSize(336, 291); this.setContentPane(getJContentPane()); this.setTitle("英语试题"); this.setVisible(true); this.addWindowListener(new java.awt.event.WindowAdapter() { public void windowClosing(java.awt.event.WindowEvent e) { System.exit(0); } }); } /** * This method initializes jContentPane * * @return javax.swing.JPanel */ private JPanel getJContentPane() { if (jContentPane == null) { jLabel3 = new JLabel(); jLabel3.setBounds(new Rectangle(135, 67, 85, 74)); jLabel3.setText(""); jLabel2 = new JLabel(); jLabel2.setBounds(new Rectangle(20, 155, 256, 18)); jLabel1 = new JLabel(); jLabel1.setBounds(new Rectangle(15, 36, 155, 18)); jLabel1.setText("（ ） some flowers for you"); jLabel = new JLabel(); jLabel.setBounds(new Rectangle(15, 14, 39, 18)); jLabel.setText("题目："); jContentPane = new JPanel(); jContentPane.setLayout(null); jContentPane.add(jLabel, null); jContentPane.add(jLabel1, null); jContentPane.add(getJRadioButton(), null); jContentPane.add(getJRadioButton1(), null); jContentPane.add(getJRadioButton2(), null); jContentPane.add(jLabel2, null); jContentPane.add(jLabel3, null); bg=new ButtonGroup(); bg.add(jRadioButton); bg.add(jRadioButton1); bg.add(jRadioButton2); } return jContentPane; } /** * This method initializes jRadioButton * * @return javax.swing.JRadioButton */ private JRadioButton getJRadioButton() { if (jRadioButton == null) { jRadioButton = new JRadioButton(); jRadioButton.setBounds(new Rectangle(16, 60, 88, 26)); jRadioButton.setText("A.给你的花"); jRadioButton.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent e) { jLabel3.setIcon(new ImageIcon("E:\头像6.jpg")); jLabel2.setText("正确答案：A。

原因不用解释了吧~~呵呵……"); } }); } return jRadioButton; } /** * This method initializes jRadioButton1 * * @return javax.swing.JRadioButton */ private JRadioButton getJRadioButton1() { if (jRadioButton1 == null) { jRadioButton1 = new JRadioButton(); jRadioButton1.setBounds(new Rectangle(16, 90, 88, 26)); jRadioButton1.setText("B.给他的花"); jRadioButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent e) { jLabel3.setIcon(new ImageIcon("E:\头像5.jpg")); jLabel2.setText("正确答案：A。

原因不用解释了吧~~呵呵……"); } }); } return jRadioButton1; } /** * This method initializes jRadioButton2 * * @return javax.swing.JRadioButton */ private JRadioButton getJRadioButton2() { if (jRadioButton2 == null) { jRadioButton2 = new JRadioButton(); jRadioButton2.setBounds(new Rectangle(16, 123, 88, 26)); jRadioButton2.setText("C.给她的花"); jRadioButton2.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent e) { jLabel3.setIcon(new ImageIcon("E:\头像5.jpg")); jLabel2.setText("正确答案：A。

原因不用解释了吧~~呵呵……"); } }); } return jRadioButton2; } public static void main(String args[]){ new EGshiti(); } } // @jve:decl-index=0:visual-constraint="10,10"

求个JAVA输入输出完整代码

//package ??; import java.util.Scanner; public class D{ public static void main(String args[]) { Scanner input = new Scanner(System.in); double d = input.nextDouble(); System.out.println(d); } }