Java 编程问题 求助！

Question

In this exercise, we will use the Scanner class to read in a series of values from a user and print it out
to screen in a specific format. Your task is to write a program that will prompt and read from the user
details in the following sequence:
• Full name
• Age
• Nationality
Your program should output the information in the following format:
Please enter your full name: Jack Black
Please enter your age: 55
Please enter your country of birth: Malaysia
Hi Jack Black,
You're 55 and born in Malaysia.
Nice to meet you!
Bye.

这个程序 怎么编啊？
我用的是 JCreator LE

Answer 1

程序用User类封装了用户信息，符合OO思想，代码如下，经过Eclipse测试通过：
import java.util.Scanner;

public class User {
private String fullName;
private int age;
private String nationality;

public String getFullName() {
return fullName;
}

public void setFullName(String fullName) {
this.fullName = fullName;
}

public int getAge() {
return age;
}

public void setAge(int age) {
this.age = age;
}

public String getNationality() {
return nationality;
}

public void setNationality(String nationality) {
this.nationality = nationality;
}

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
User user = new User();
Scanner scanner = new Scanner(System.in);//建立Scanner，并设置接受输入为系统输入

System.out.print("Please enter your full name: ");
user.setFullName(scanner.next().trim()); //将用户输入的名字保存在user中，符合面向对象思想
//trim（）是为了去掉字符串前面和末尾的空格
System.out.print("Please enter your age: ");
user.setAge(Integer.parseInt(scanner.next().trim()));

System.out.print("Please enter your country of birth: ");
user.setNationality(scanner.next().trim());

System.out.println("Hi " + user.getFullName() + ",");
System.out.println("You're " + user.getAge() + "and born in " + user.getNationality() + ".");
System.out.println("Nice to meet you!");
System.out.println("Bye.");
}

}

补充楼主的问题：只要你安装了JDK就行了，这样就可以在dos命令下运行，要求如下：
1. 设置环境变量（这个你应该早设置了，^_^）
2. 在dos下进入你需要编译的java源文件
3. javac 类名.java
4. java 类名（注意大小写）
按照上面的步骤就可以看到，你想要的结果了，还有楼主应该用用eclipse，这是免费的，对以后有帮助

Answer 2

代码实现如下,仅供参考

import java.util.Scanner;

public class ScannerTest {

String name;
int age;
String nationality;

String sentence;

// 接收用户输入信息
public void input() {
Scanner sc = new Scanner(System.in);
System.err.println("Please enter your full name:");
name = sc.next();
System.err.println("Please enter your age:");
age = Integer.parseInt(sc.next());
System.err.println("Please enter your country of birth:");
nationality = sc.next();
}

// 将用户输入组合成反馈信息
public void createSentence() {
sentence = "Hi " + name + ",\nYou're " + age + " and born in "
+ nationality + "\nNice to meet you!Bye.";
}

// 输出反馈信息
public void output() {
System.err.println(sentence);
}

public static void main(String[] args) {
ScannerTest test = new ScannerTest();// 创建类对象
test.input();// 调用输入方法
test.createSentence();// 构造反馈信息
test.output();// 输出反馈信息
}
}

Answer 3

程序要求就是写一个类，类中包含
• Full name
• Age
• Nationality
这三种属性
然后利用键盘输出。依次将键盘输出为上面三个属性赋值。
然后组成一条语句打印输出即可。

Answer 4

关注。