How to access the field of String type?

My Database is Oracle 8.0.5,
client is JDK1.3 and classes12.zip.
the database table likes this:
CREATE TABLE T_KNIGHT
ID INTEGER,
NAME CHAR(20) NULL,
BIRTH DATE,
PRIMARY KEY (ID)
my java program likes this:
String SqlStr = "SELECT ID, NAME, BIRTH FROM T_KNIGHT";
Class.forName ("oracle.jdbc.driver.OracleDriver");
con = DriverManager.getConnection("jdbc:oracle:thin:@server:1521:orcl", "", "");
stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
rs = stmt.executeQuery (SqlStr);
rs.moveToInsertRow();
rs.updateInt(1, 4);
rs.updateString(2, "MyName");
rs.updateDate(3, new java.sql.Date (System.currentTimeMillis ()));
rs.insertRow();
rs.moveToCurrentRow();
while execute the line "rs.insertRow();", an exception is threw out :
java.sql.SQLException: unsupport character set: oracle-character-set-832
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:114)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:156)
at oracle.jdbc.dbaccess.DBError.check_error(DBError.java:775)
at oracle.sql.CharacterSetUnknown.failCharsetUnknown(CharacterSetFactoryThin.java:118)
at oracle.sql.CharacterSetUnknown.convert(CharacterSetFactoryThin.java:82)
at oracle.sql.CHAR.<init>(CHAR.java:109)
at oracle.sql.CHAR.<init>(CHAR.java:133)
at oracle.sql.SQLUtil.makeDatum(SQLUtil.java:563)
at oracle.sql.SQLUtil.makeOracleDatum(SQLUtil.java:937)
at oracle.jdbc.driver.UpdatableResultSet.updateObject(UpdatableResultSet.java:1534)
at oracle.jdbc.driver.UpdatableResultSet.updateString(UpdatableResultSet.java:1345)
at TestOld.insert(TestOld.java:125)
at TestOld.main(TestOld.java:17)
How can I do to resolve that question? Help me, please!!

What do you mean "can't access", check the API Javadocs.
The Field object is part of the Class object, so you have to supply the instance you want to extract the value from e.g.
Field f = FieldClass.class.getDeclaredField("z");
int value = f.getInt(a);(This is pretty nasty, 99 times out of 100 you'd be better to use a Map object).

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