Java Reference
In-Depth Information
Display 10.20
File I/O of an Array Object
(part 2 of 3)
21
catch
(IOException e)
22
{
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System.out.println("Error writing to file.");
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System.exit(0);
25
}
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System.out.println(
27
"Array written to file arrayfile.");
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System.out.println(
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"Now let's reopen the file and display the array.");
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SomeClass[] b =
null
;
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try
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{
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ObjectInputStream inputStream =
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new
ObjectInputStream(
new
FileInputStream("arrayfile"));
35
b = (SomeClass[])inputStream.readObject();
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inputStream.close();
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}
Notice the type cast.
38
catch
(FileNotFoundException e)
39
{
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System.out.println("Cannot find file arrayfile.");
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System.exit(0);
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}
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catch
(ClassNotFoundException e)
44
{
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System.out.println("Problems with file input.");
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System.exit(0);
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}
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catch
(IOException e)
49
{
50
System.out.println("Problems with file input.");
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System.exit(0);
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}
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System.out.println(
54
"The following array elements were read from the file:");
55
int
i;
56
for
(i = 0; i < b.length; i++)
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System.out.println(b[i]);
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System.out.println("End of program.");
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}
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}
(continued)
