How to insert multiple strings into a sqlite table using dbadapter

I want to insert the values inside 2 strings into a table using dbadapter.

I am able to insert one string named as 'inputparticulars' to a column named

as 'TX_PARTICULARS'. How to insert another the value from another string

'inputamount' to another column named as 'TX_AMOUNT' in the same row.

public void  onTxClick(View v)    

{String inputparticulars=particulars.getText().toString();         

 String inputamount=amount.getText().toString();        

 ContentValues contentvalues=new ContentValues();        

 vivzHelper.insertTxData(inputparticulars);         

}    

public long insertTxData(String inputparticulars) {

    SQLiteDatabase db = helper.getWritableDatabase();

    ContentValues contentvalues = new ContentValues();

    contentvalues.put(VivzHelper.TX_PARTICULARS,inputparticulars);

    //contentvalues.put(VivzHelper.TX_AMOUNT, inputamount);

    contentvalues.put(VivzHelper.TX_DATE, Calendar.DATE);

    long id = db.insert(VivzHelper.TX_TABLE, null, contentvalues );

    return id;

    }