PrintWriter无法打印出完整的字符串 [英] PrintWriter not printing out complete string

问题描述

我有以下代码

FileWriter F = new FileWriter("out.txt");
PrintWriter H = new PrintWriter(F);
H.print(split[split.length - 2]);
H.print("END");

但是，当我检查txt时，最后一个文本不是'END'，而是字符串中单词的一部分.是"repa"

When I examine the txt however, the last text is NOT 'END', but part of a word in the string. It is "repa"

当我这样做

FileWriter F = new FileWriter("out.txt");
PrintWriter H = new PrintWriter(F);
System.out.print(split[split.length - 2]);

我得到的最后一点文字是数字'49'-这是正确的.

The last bit of text I get is the number '49' - this is correct.

看来PrintWriter没有完全写出字符串.但是，当我这样做

It appears that the PrintWriter is not fully writing out the string. However, when I do this

FileWriter F = new FileWriter("out.txt");
PrintWriter H = new PrintWriter(F);
H.print(split[split.length - 2]);
H.println(pdfInText)://Another string
H.print("END");

原始"文本实际上已经完成了-这是什么?

The 'original' text now actually finishes - what is this?

推荐答案

是否关闭PrintWriter?从其Javadoc

Do you close the PrintWriter? From its javadoc

与PrintStream类不同，如果启用了自动刷新，则仅在调用println()方法之一时才执行此操作，而不是在输出换行符时才执行. println()方法使用平台自己的行分隔符概念，而不是换行符.

Unlike the PrintStream class, if automatic flushing is enabled it will be done only when one of the println() methods is invoked, rather than whenever a newline character happens to be output. The println() methods use the platform's own notion of line separator rather than the newline character.

如果您确实关闭了PrintWriter(而不是FileWriter！)，请在打印后尝试使用flush()，以强制执行该操作.

If you do close the PrintWriter (and not the FileWriter!) try a flush() after printing, to force that.

这篇关于PrintWriter无法打印出完整的字符串的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！