Question

会JAVA编程请进！！！写一个运行程序，将用户从键盘上输入的十行文字存入文件。

Answer 1

Java源程序：

import java.io.*;
import java.util.*;

public class yurenjie {
public static void main(String args[]){
try{
Scanner scan = new Scanner(System.in);
StringBuffer buffer = new StringBuffer(); //字符串缓冲区
String temp;
System.out.println("请输入10行字符：");
for(int i=0; i<10; i++){ //将10个字符串预先存入字符串缓冲区
temp = scan.next();
buffer.append(temp + "\n");
}
String fileName = "d:\\data.txt"; //保存位置
OutputStream os = new FileOutputStream(fileName);
PrintStream ps = new PrintStream(os);
ps.print(buffer.toString()); //写入文件
ps.close();
os.close();
}
catch(Exception ex){
System.out.println("系统I/O错误！");
}
}
}

追问

怎么文字没有存到文件里？

追答

写进入了。你在D盘找一下data.txt文件就知道了。

import java.io.*;
import java.util.*;

public class yurenjie {
public static void main(String args[]){
try{
Scanner scan = new Scanner(System.in);
StringBuffer buffer = new StringBuffer(); //字符串缓冲区
String temp;
System.out.println("请输入10行字符：");
for(int i=0; i<10; i++){ //将10个字符串预先存入字符串缓冲区
temp = scan.next();
buffer.append(temp + "\n");
}
String fileName = "d:\\data.txt"; //保存位置
OutputStream os = new FileOutputStream(fileName);
PrintStream ps = new PrintStream(os);
ps.print(buffer.toString()); //写入文件
ps.flush();
ps.close();
os.close();
}
catch(Exception ex){
System.out.println("系统I/O错误！");
}
}
}