2
在Java 7中使用試用資源時,是否有任何有關.close()
被調用順序的保證?try-with-resources:Java是否對調用.close()的順序做出任何保證?
下面是從Oracle一些示例代碼顯示這樣的特徵:
try (
java.util.zip.ZipFile zf = new java.util.zip.ZipFile(zipFileName);
java.io.BufferedWriter writer = java.nio.file.Files.newBufferedWriter(outputFilePath, charset)
) {
// Enumerate each entry
for (java.util.Enumeration entries = zf.entries(); entries.hasMoreElements();) {
// Get the entry name and write it to the output file
String newLine = System.getProperty("line.separator");
String zipEntryName = ((java.util.zip.ZipEntry)entries.nextElement()).getName() + newLine;
writer.write(zipEntryName, 0, zipEntryName.length());
}
兩個zf.close()
和writer.close()
將被調用。訂單是否有保證?