GIV>Сказал же.- стектрейс смотри

org.postgresql.Driver.connect(Driver.java:277)
java.sql.DriverManager.getConnection(DriverManager.java:580)
java.sql.DriverManager.getConnection(DriverManager.java:218)
com.example.test.MainActivity.onCreate(MainActivity.java:57)
android.app.Activity.performCreate(Activity.java:9276)
android.app.Activity.performCreate(Activity.java:9254)
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1541)
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4436)
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4655)
android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:222)
android.app.servertransaction.TransactionExecutor.executeNonLifecycleItem(TransactionExecutor.java:133)
android.app.servertransaction.TransactionExecutor.executeTransactionItems(TransactionExecutor.java:103)
android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:80)
android.app.ActivityThread$H.handleMessage(ActivityThread.java:2917)
android.os.Handler.dispatchMessage(Handler.java:132)
android.os.Looper.dispatchMessage(Looper.java:333)
android.os.Looper.loopOnce(Looper.java:263)
android.os.Looper.loop(Looper.java:367)
android.app.ActivityThread.main(ActivityThread.java:9227)
java.lang.reflect.Method.invoke(Native Method)
com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:566)
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:929)