Java try-with-resource（当一个资源包装另一个资源时）

Question

假设我需要这个实例新的BufferedReader（new InputStreamReader（new FileInputStream（path））），使用try with resource编写这个实例的最佳方法是什么。

1.我习惯写什么--因为只有第一个可关闭的需要关闭

try (FileInputStream fileInputStream = new FileInputStream(path)) {
    BufferedReader reader = new BufferedReader(new InputStreamReader(fileInputStream));
    ...
}

try (BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(path)))) {
    ...
}

try (
        FileInputStream fileInputSream = new FileInputStream(path);
        InputStreamReader inputStreamReader = new InputStreamReader(fileInputSream);
        BufferedReader reader = new BufferedReader(fileInputSream)) {
    ...
}

伊多·索罗松

Answer 1

我建议一个可读性更强的选项（提取方法）：

try (BufferedReader reader = getBufferReader()) {