E/SQLiteLog: (1) in der Nähe von "ENTER": Syntaxfehler

Question

Ich bekomme diesen seltsamen Fehler beim Versuch, eine Datenbank zu erstellen. Ich baue eine Spesenmanager-App und möchte die Daten aus der Textansicht in die SQLite-Datenbank speichern, aber ich erhalte diese Fehler, wenn ich auf die Schaltfläche zum Speichern drücke. IS Dies ist, weil ich versuche, Datenbank in einer anderen Aktivität als die MainActivity zu erstellen?

07-20 01:49:31.032 28795-28795/com.example.alkesh.expensemanager101 E/SQLiteLog: (1) near "ENTER": syntax error 
07-20 01:49:31.032 28795-28795/com.example.alkesh.expensemanager101 D/AndroidRuntime: Shutting down VM 


                         --------- beginning of crash 
07-20 01:49:31.042 28795-28795/com.example.alkesh.expensemanager101 E/AndroidRuntime: FATAL EXCEPTION: main 
                         Process: com.example.alkesh.expensemanager101, PID: 28795 
                         Theme: themes:{default=overlay:com.baranovgroup.nstyle, iconPack:com.baranovgroup.nstyle, fontPkg:com.baranovgroup.nstyle, com.android.systemui=overlay:com.baranovgroup.nstyle, com.android.systemui.navbar=overlay:com.baranovgroup.nstyle} 
                         android.database.sqlite.SQLiteException: near "ENTER": syntax error (code 1): , while compiling: ENTER INTO money (name) VALUES ('25'); 
                          at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method) 
                          at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:889) 
                          at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:500) 
                          at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588) 
                          at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58) 
                          at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31) 
                          at android.database.sqlite.SQLiteDatabase.executeSql(SQLiteDatabase.java:1674) 
                          at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1605) 
                          at com.example.alkesh.expensemanager101.AddMoney.insertIntoDatabase(AddMoney.java:95) 
                          at com.example.alkesh.expensemanager101.AddMoney.onClick(AddMoney.java:63) 
                          at android.view.View.performClick(View.java:5204) 
                          at android.view.View$PerformClick.run(View.java:21158) 
                          at android.os.Handler.handleCallback(Handler.java:739) 
                          at android.os.Handler.dispatchMessage(Handler.java:95) 
                          at android.os.Looper.loop(Looper.java:148) 
                          at android.app.ActivityThread.main(ActivityThread.java:5461) 
                          at java.lang.reflect.Method.invoke(Native Method) 
                          at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
                          at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
                          at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:132) 

Hier ist mein Code für die AddMoney Aktivität

package com.example.alkesh.expensemanager101; 

import android.content.Context; 
import android.content.Intent; 
import android.database.sqlite.SQLiteDatabase; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.Toast; 

public class AddMoney extends AppCompatActivity implements View.OnClickListener{ 

    Button Save,Cancel; 
    EditText expText; 
    int[] expense=new int[100]; 
    int temp=900; 
    int c=0; 
    int sum=0; 
    String DBOnce; 

    private SQLiteDatabase db; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_add_money); 

     expText=(EditText)findViewById(R.id.expense); 

     Cancel=(Button)findViewById(R.id.cancelbutton); 
     Cancel.setOnClickListener(this); 

     Save = (Button)findViewById(R.id.savebutton); 
     Save.setOnClickListener(this); 

     CreateDatabase(); 
     } 





    @Override 
    public void onClick(View view) { 

     if(view== Save){ 

      insertIntoDatabase(); 

     } 

     if(view==Cancel){ 
      Intent intent =new Intent(AddMoney.this,MainActivity.class); 
      startActivity(intent); 
      finish(); 
     } 

    } 

    protected void CreateDatabase(){ 
     db=openOrCreateDatabase("MoneyDB", Context.MODE_PRIVATE,null); 
     db.execSQL("CREATE TABLE IF NOT EXISTS money(ID INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, name VARCHAR);"); 
    } 



    protected void insertIntoDatabase(){ 
     String amount = expText.getText().toString().trim(); 

     if(amount.equals("")){ 
      Toast.makeText(this,"Please enter your expense or press Cancel to go back",Toast.LENGTH_LONG).show(); 
      return; 
     } 

     String query="ENTER INTO money (name) VALUES ('"+amount+"');"; 
     db.execSQL(query); 
     Toast.makeText(this,"Expense Saved",Toast.LENGTH_LONG).show(); 


    } 

} 

Hier ist mein Code für MainActivity.

package com.example.alkesh.expensemanager101; 

import android.content.Intent; 
import android.os.Parcelable; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.widget.Button; 
import android.widget.TextView; 
import android.widget.Toast; 

public class MainActivity extends AppCompatActivity { 

    Button Add; 
    TextView expense; 
    int c=0; 
    String DBonce="0"; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 


     Add = (Button) findViewById(R.id.addbutton); 
     Add.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
       Intent intent = new Intent(MainActivity.this, AddMoney.class); 
       intent.putExtra("counter", DBonce); 
       startActivity(intent); 
      } 
     }); 

    } 


    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     getMenuInflater().inflate(R.menu.menuhome,menu); 
     return super.onCreateOptionsMenu(menu); 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     switch(item.getItemId()){ 
      case R.id.feedback:{} 
      break; 

      case R.id.exit: finish(); 
       break; 
     } 
     return super.onOptionsItemSelected(item); 
    } 
} 

Answer 1

In AddMoney Activity-Funktion insertIntoDatabase() ändern Sie Ihre Suchanfrage eingeben