This method retrieves a Double value from the resultset at the given column. - Java java.lang

Java examples for java.lang:double

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Description

This method retrieves a Double value from the resultset at the given column.

Demo Code


//package com.java2s;
import java.sql.ResultSet;
import java.sql.SQLException;

public class Main {
    /**//from   ww  w  .  j  a v a2  s  .  co  m
     * This method retrieves a Double value from the resultset at the given
     * column.  If the column's value is null, null is returned, else a new
     * Double object containing the double value is returned.
     * @param result The result from which the value is to be retrieved.
     * @param columnIndex The index of the column from which the value is to
     *                    be retrieved.
     * @return If the column's value is null, null; else a new Double object
     *         containing the double value in the column.
     * @throws SQLException Indicates an error retrieving the data from the
     *         ResultSet.
     */
    public static Double getNullableDouble(ResultSet result, int columnIndex)
            throws SQLException {
        double d = result.getDouble(columnIndex);
        if (result.wasNull()) {
            return null;
        } else {
            return new Double(d);
        }
    }
}

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