[英]Reading a large number of BitSet Objects from a file in Java
我想從文件(12MB)中讀取大量BitSet
對象。 我使用了以下代碼,但只從文件讀取了第一個對象並重復了它。 謝謝
public static void main(String[] args) {
// TODO code application logic here
ObjectInputStream Input = null;
FileInputStream Database = null;
Object Buffer = null;
BitSet H = null;
try
{
Database = new FileInputStream("BloomFilters.txt");
Input = new ObjectInputStream(Database);
while((Buffer = Input.readObject()) != null)
{
H = (BitSet)Buffer;
System.out.println(H);
System.out.println("Yes" );
}
}
catch(Exception e)
{
System.out.println("Exp = " + e.getMessage());
}
然后下面的代碼創建一個BitSet對象文件,我想從該文件中讀取對象
public class Main {
public static void main(String[] args) {
BloomFilter Set = new BloomFilter(512, 100);
ObjectOutputStream Output = null;
DataInputStream Input = null;
FileOutputStream DBOut = null;
FileInputStream DBIn = null;
String Sequence = "";
try
{
DBOut = new FileOutputStream("Bloomfilters.txt");
Output = new ObjectOutputStream(DBOut);
DBIn = new FileInputStream("DB.txt");
Input = new DataInputStream(DBIn);
while((Sequence = (String) Input.readLine()) != null)
{
Set.clear();
for(int i = 0; i < Sequence.length() - 1; i++)
Set.add((Sequence.substring(i, i + 2)));
BitSet buffer = Set.getBitSet();
Output.writeObject(buffer);
}
Input.close();
Output.close();
}
catch(Exception e)
{
System.out.println(e.getMessage());
}
}
}
我認為您需要一個Scanner 才能看到此代碼具有大索引的Java Bitset錯誤 。 這是一個不同的問題,但是第一個循環是將帶有數字的大文件讀入一個位集中,
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