0
06-10 14:57:26.289: ERROR/AndroidRuntime(608): FATAL EXCEPTION: main
06-10 14:57:26.289: ERROR/AndroidRuntime(608): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.android.sudhakar.sqlite.database.project/com.android.sudhakar.sqlite.database.project.MainActivity}: java.lang.NullPointerException
06-10 14:57:26.289: ERROR/AndroidRuntime(608): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
06-10 14:57:26.289: ERROR/AndroidRuntime(608): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
06-10 14:57:26.289: ERROR/AndroidRuntime(608): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
06-10 14:57:26.289: ERROR/AndroidRuntime(608): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
06-10 14:57:26.289: ERROR/AndroidRuntime(608): at android.os.Handler.dispatchMessage(Handler.java:99)
06-10 14:57:26.289: ERROR/AndroidRuntime(608): at android.os.Looper.loop(Looper.java:123)
06-10 14:57:26.289: ERROR/AndroidRuntime(608): at android.app.ActivityThread.main(ActivityThread.java:4627)
06-10 14:57:26.289: ERROR/AndroidRuntime(608): at java.lang.reflect.Method.invokeNative(Native Method)
06-10 14:57:26.289: ERROR/AndroidRuntime(608): at java.lang.reflect.Method.invoke(Method.java:521)
06-10 14:57:26.289: ERROR/AndroidRuntime(608): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
06-10 14:57:26.289: ERROR/AndroidRuntime(608): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
06-10 14:57:26.289: ERROR/AndroidRuntime(608): at dalvik.system.NativeStart.main(Native Method)
06-10 14:57:26.289: ERROR/AndroidRuntime(608): Caused by: java.lang.NullPointerException
06-10 14:57:26.289: ERROR/AndroidRuntime(608): at com.android.sudhakar.sqlite.database.project.MainActivity.onCreate(MainActivity.java:37)
06-10 14:57:26.289: ERROR/AndroidRuntime(608): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
06-10 14:57:26.289: ERROR/AndroidRuntime(608): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
06-10 14:57:26.289: ERROR/AndroidRuntime(608): ... 11 more
06-10 14:57:26.360: WARN/ActivityManager(69): Force finishing activity com.android.sudhakar.sqlite.database.project/.MainActivity
06-10 14:57:27.096: WARN/ActivityManager(69): Activity pause timeout for HistoryRecord{44e80808 com.android.sudhakar.sqlite.database.project/.MainActivity}
package com.android.sudhakar.sqlite.database.project;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
public class MainActivity extends Activity
{
Button insButton;
Button delButton;
Button srchButton;
Button updateButton;
private DBHelper dbHelper;
private EditText firstEditText;
private EditText lastEditText;
private EditText branchEditText;
private EditText rollEditText;
private EditText sscEditText;
private EditText hscEditText;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
int rollNo = Integer.parseInt(rollEditText.toString());
String fName = firstEditText.toString();
String lName = lastEditText.toString();
String branch = branchEditText.toString();
float ssc = Float.parseFloat(sscEditText.toString());
float hsc = Float.parseFloat(hscEditText.toString());
final Object[] object = {rollNo,fName,lName,branch,ssc,hsc};
setContentView(R.layout.page);
try
{
String sql = "insert into studsinfo";
dbHelper = new DBHelper(this);
dbHelper.execSql(sql, object);
AlertDialog.Builder alertBuilder = new AlertDialog.Builder(this);
alertBuilder.setTitle("Student Information..");
final AlertDialog alert = alertBuilder.create();
alert.show();
insButton.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
Intent intent = new Intent(MainActivity.this, DeleteActivity.class);
intent.putExtra("id", object.toString());
startActivity(intent);
}
});
}
catch (Exception e)
{
e.printStackTrace();
}
dbHelper.close();
}
}