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POjava.lang.NumberFormatException for string values
 

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  1. POjava.lang.NumberFormatException for string values
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    <p>i have a issue making a SQLite edition, basicly, the error is java.lang.NumberFormatException, im making Long.parseLong in my data, but i dont know why the program continues sending me that error , the code of my first class is next:</p> <pre><code>public class SQLiteActivity extends Activity implements OnClickListener { /** Called when the activity is first created. */ EditText ecoursename, etopic, ecourse_description, elength, erating, esearch; Button insert, view, search, edit, delete; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); ecoursename = (EditText) findViewById(R.id.cName); etopic = (EditText) findViewById(R.id.cTopic); ecourse_description= (EditText) findViewById(R.id.cDescription); elength= (EditText) findViewById(R.id.cLength); erating= (EditText) findViewById(R.id.cRating); esearch = (EditText) findViewById(R.id.etSearch); insert = (Button) findViewById(R.id.btInsert); view = (Button) findViewById(R.id.btView); search = (Button) findViewById(R.id.btSearch); edit = (Button) findViewById(R.id.btEdit); delete = (Button) findViewById(R.id.btDelete); search.setOnClickListener(this); edit.setOnClickListener(this); delete.setOnClickListener(this); insert.setOnClickListener(this); view.setOnClickListener(this); } public void onClick(View v) { //TODO Auto-generated method stub switch (v.getId()){ case R.id.btInsert: boolean works = true; try{ String course_name = ecoursename.getText().toString(); String topic = etopic.getText().toString(); String course_description = ecourse_description.getText().toString(); String length = elength.getText().toString(); String rating = erating.getText().toString(); ecoursename.setText(""); etopic.setText(""); ecourse_description.setText(""); elength.setText(""); erating.setText(""); DBAdapter entry = new DBAdapter (SQLiteActivity.this); entry.open(); entry.createEntry(course_name, topic, course_description, length, rating); entry.close(); }catch(Exception e){ works = false; String error = e.toString(); Dialog d = new Dialog(this); d.setTitle("Dont Works"); TextView tv = new TextView(this); tv.setText(error); d.setContentView(tv); d.show(); }finally{ if(works){ // make click says inserted text Dialog d = new Dialog(this); d.setTitle("Works?"); TextView tv = new TextView(this); tv.setText("is Working"); d.setContentView(tv); d.show(); } } break; case R.id.btView: Intent i = new Intent("com.sqlite.base.data.SQLVista"); startActivity(i); break; case R.id.btSearch: String s = esearch.getText().toString(); Long ls = Long.parseLong(s); DBAdapter dbase= new DBAdapter(this); try{ dbase.open(); }catch(Exception e){ e.printStackTrace(); } String bN = dbase.getN(ls); String bT = dbase.getT(ls); String bD = dbase.getD(ls); String bL = dbase.getL(ls); String bR = dbase.getR(ls); dbase.close(); ecoursename.setText(bN); etopic.setText(bT); ecourse_description.setText(bD); elength.setText(bL); erating.setText(bR); break; case R.id.btEdit: try{ String eCo = ecoursename.getText().toString(); String eTo = etopic.getText().toString(); String eDe = ecourse_description.getText().toString(); String eLe = elength.getText().toString(); String eRa = erating.getText().toString(); String eRow = esearch.getText().toString(); long eRowl = Long.parseLong(eRow); DBAdapter edit = new DBAdapter(this); edit.open(); edit.edit(eRowl, eCo, eTo, eDe, eLe, eRa); edit.close(); }catch(Exception e) { String error = e.toString(); Dialog d = new Dialog(this); d.setTitle("Dont Works!"); TextView tv = new TextView(this); tv.setText(error); d.setContentView(tv); d.show(); } break; case R.id.btDelete: break; } } } </code></pre> <p>my DBAdapter class:</p> <pre><code>public class DBAdapter { public static final String ID_ROW = "_id"; public static final String ID_COURSENAME = "course_name"; public static final String ID_TOPIC = "topic"; public static final String ID_DESCRIPTION = "course_description"; public static final String ID_LENGTH = "length"; public static final String ID_RATING = "rating"; private static final String N_DB = "Clases"; private static final String N_TABLE = "Courses"; private static final int VERSION_DB = 1; private DBHelper nHelper; private final Context nContext; private SQLiteDatabase nDB; private static class DBHelper extends SQLiteOpenHelper{ public DBHelper(Context context) { super(context, N_DB, null, VERSION_DB); // TODO Auto-generated constructor stub } @Override public void onCreate(SQLiteDatabase db) { // TODO Auto-generated method stub db.execSQL(" CREATE TABLE " + N_TABLE + "(" + ID_ROW + " INTEGER PRIMARY KEY AUTOINCREMENT, " + ID_COURSENAME + " TEXT NOT NULL, " + ID_TOPIC + " TEXT NOT NULL, " + ID_DESCRIPTION + " TEXT NOT NULL, " + ID_LENGTH + " TEXT NOT NULL, " + ID_RATING + " TEXT NOT NULL);" ); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { // TODO Auto-generated method stub db.execSQL("DROP TABLE IF EXISTS " + N_TABLE); onCreate(db); } } public DBAdapter (Context c){ nContext = c; } public DBAdapter open() throws SQLException{ nHelper = new DBHelper(nContext); nDB = nHelper.getWritableDatabase(); return this; } public void close() { // TODO Auto-generated method stub nHelper.close(); } public long createEntry(String course_name, String topic, String course_description, String length, String rating ) { // TODO Auto-generated method stub //insert data ContentValues cv = new ContentValues(); cv.put(ID_COURSENAME, course_name); cv.put(ID_TOPIC, topic); cv.put(ID_DESCRIPTION, course_description); cv.put(ID_LENGTH, length); cv.put(ID_RATING, rating); //return content in table return nDB.insert(N_TABLE, null, cv); } public String receive() { // TODO Auto-generated method stub String[] columns = new String[]{ID_ROW, ID_COURSENAME, ID_TOPIC, ID_DESCRIPTION, ID_LENGTH, ID_RATING}; Cursor c = nDB.query(N_TABLE, columns, null, null, null, null, null); String result = ""; int iRow = c.getColumnIndex(ID_ROW); int cName = c.getColumnIndex(ID_COURSENAME); int cTopic = c.getColumnIndex(ID_TOPIC); int cDescription = c.getColumnIndex(ID_DESCRIPTION); int cLength = c.getColumnIndex(ID_LENGTH); int cRating = c.getColumnIndex(ID_RATING); //loop for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ result = result + c.getString(iRow) + " " + c.getString(cName) + " " + c.getString(cTopic) + " " + c.getString(cDescription) + " " + c.getString(cLength) + " " + c.getString(cRating) + "\n "; } return result; } public String getN(Long ls) { // TODO Auto-generated method stub String[] columns = new String[]{ID_ROW, ID_COURSENAME, ID_TOPIC, ID_DESCRIPTION, ID_LENGTH, ID_RATING}; Cursor c =nDB.query(N_TABLE, columns, ID_ROW + "=" + ls, null, null, null, null); if(c != null){ c.moveToFirst(); String ns = c.getString(1); return ns; } return null; } public String getT(Long ls) { // TODO Auto-generated method stub String[] columns = new String[]{ID_ROW, ID_COURSENAME, ID_TOPIC, ID_DESCRIPTION, ID_LENGTH, ID_RATING}; Cursor c =nDB.query(N_TABLE, columns, ID_ROW + "=" + ls, null, null, null, null); if(c != null){ c.moveToFirst(); String ts = c.getString(2); return ts; } return null; } public String getD(Long ls) { // TODO Auto-generated method stub String[] columns = new String[]{ID_ROW, ID_COURSENAME, ID_TOPIC, ID_DESCRIPTION, ID_LENGTH, ID_RATING}; Cursor c =nDB.query(N_TABLE, columns, ID_ROW + "=" + ls, null, null, null, null); if(c != null){ c.moveToFirst(); String nd = c.getString(3); return nd; } return null; } public String getL(Long ls) { // TODO Auto-generated method stub String[] columns = new String[]{ID_ROW, ID_COURSENAME, ID_TOPIC, ID_DESCRIPTION, ID_LENGTH, ID_RATING}; Cursor c =nDB.query(N_TABLE, columns, ID_ROW + "=" + ls, null, null, null, null); if(c != null){ c.moveToFirst(); String nl = c.getString(4); return nl; } return null; } public String getR(Long ls) { // TODO Auto-generated method stub String[] columns = new String[]{ID_ROW, ID_COURSENAME, ID_TOPIC, ID_DESCRIPTION, ID_LENGTH, ID_RATING}; Cursor c =nDB.query(N_TABLE, columns, ID_ROW + "=" + ls, null, null, null, null); if(c != null){ c.moveToFirst(); String nr = c.getString(5); return nr; } return null; } public void edit(long eRowl, String eCo, String eTo, String eDe, String eLe, String eRa) throws SQLException { // TODO Auto-generated method stub ContentValues cvEdit = new ContentValues(); cvEdit.put(ID_COURSENAME, eCo); cvEdit.put(ID_TOPIC, eTo); cvEdit.put(ID_DESCRIPTION, eDe); cvEdit.put(ID_LENGTH, eLe); cvEdit.put(ID_RATING, eRa); nDB.update(N_TABLE, cvEdit, ID_ROW + "=" + eRowl, null); }} </code></pre> <p>really would appreciate your help</p>
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    1. PO
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    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USJLouis
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
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      1. POjava.lang.NumberFormatException for string values
      1. This table or related slice is empty.
      1. VTUpMod
    1. This table or related slice is empty.
 

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