????????FileInputStream?fileInputStream?=?new?FileInputStream("test_dir/test_file.txt");
byte[]?buffer?=?new?byte[1024];
fileInputStream.read(buffer);
for?(byte?b?:?buffer)?{
System.out.println(b);
}
fileInputStream.close();????????FileInputStream?fileInputStream?=?new?FileInputStream("test_dir/test_file.txt");
????int?x;
while((x=fileInputStream.read())!=?-1)
System.out.println(x);
fileInputStream.close();上面2段代碼輸出的數(shù)字為何不同？（忽略byte數(shù)組多余的零）
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