以下代碼似乎不起作用。我想寫入某個路徑中的文件，但是當我嘗試運行此代碼時，它不會寫入文件。public static void main(String[] args) { new File("PATH").mkdir(); File myfile = new File("PATH"); try { String name = "This is my code"; char[] c = name.toCharArray(); FileWriter fw = new FileWriter(myfile); int k = 0; while (k < c.length) { fw.write(c[k]); k++; } } catch (IOException e) { System.out.println(e.getMessage()); }
1 回答
互換的青春
TA貢獻1797條經驗 獲得超6個贊
使用 FileWriter 寫入文件
public static void main(String[] args) {
String[] inputs = new String[] {"input-1","input-2","input-3"};
File outputFile = new File("output.txt");
try(FileWriter writer = new FileWriter(outputFile)){
for(String input:inputs) {
writer.write(input);
}
} catch (IOException e) {
System.out.println(e.getMessage());
}
}
使用 BufferedWriter 逐行寫入文件
public static void main(String[] args) {
String[] input = new String[] {"input-1","input-2","input-3"};
File outputFile = new File("output-buffer.txt");
try(BufferedWriter writer = new BufferedWriter(new FileWriter(outputFile))){
for(String inputLine:input) {
writer.write(inputLine);
writer.newLine();
}
} catch (IOException e1) {
System.out.println(e.getMessage());
}
}
從 java7 開始，您可以使用Files來編寫
String text = "Text to save to file";
Files.write(Paths.get("./fileName.txt"), text.getBytes());
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