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import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.sql.SQLException;
import java.text.SimpleDateFormat;
import java.util.Date;
public class BackupDb {
public BackupDb() {
}
public String back ......
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class Base
{
public:
Base()
{
init();
}
virtual ~Base() {}
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int value;
virtual void init()
{
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public class HelloWorld{
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