我正在尝试复制一个文本文件,但是当代码执行完成时,我只有文件中的最后一行文本。显然, scanLine()
不断覆盖同一行,但我无法解决这个问题。有什么想法吗?
do{
try{
FileWriter name = new FileWriter("/home/fok/Desktop/out");
BufferedWriter out = new BufferedWriter(name);
a=x.nextLine();scanner x grabs next line and sets it string a
out.write(a);//writes a to file
out.close();//closees file
} catch (IOException ioe){
System.out.println("file writer error");
}
} while(x.hasNext());
最佳答案
这非常简单,您在 for 循环内关闭和打开文件。
public void readfile(){
try {
FileWriter name = new FileWriter("/home/fok/Desktop/out");
BufferedWriter out = new BufferedWriter(name);
do {
a=x.nextLine();scanner x grabs next line and sets it string a
out.write(a);//writes a to file
} while(x.hasNext());
out.close();//closees file
} catch (IOException ioe){
System.out.println("file writer error");
}
}
关于java - 写入文件但仅保存最后一行,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/15369884/