exception

问题 I am using sqlite to create and connect to a sqlite db foo.db When I try to do an insert into the DB. I get the following AttributeError AttributeError: 'sqlite3.Cursor' object attribute 'execute' is read-only I can't seem to find any information on this error. Does anyone have any idea what this exception means? I am using python 2.7 with virtualenv. The following is the code I am trying to execute assume date is a string. username = 'user' pwdhash = some_hash_function() email = 'user@foo

问题 I see that one definition can be this: Generally RuntimeExceptions are exceptions that can be prevented programmatically. But that is still not the definition of a checked exception. I thought checked exceptions were "exceptions that can be handled at compile-time". Is that correct and/or can you tell me more? I also read this on the site, can you explain the quote? Many people say that checked exceptions (i.e. these that you should explicitly catch or rethrow) should not be used at all. Java

问题 I see that one definition can be this: Generally RuntimeExceptions are exceptions that can be prevented programmatically. But that is still not the definition of a checked exception. I thought checked exceptions were "exceptions that can be handled at compile-time". Is that correct and/or can you tell me more? I also read this on the site, can you explain the quote? Many people say that checked exceptions (i.e. these that you should explicitly catch or rethrow) should not be used at all. Java

问题 How do I use TestNG throw new SkipException() effectively? Does anyone have an example? I tried throwing this exception at the start of a test method but it blows up the teardown, setup, methods, etc. , and has collateral damage by causing a few (not all) of the subsequent tests to be skipped also, and shows a bunch of garbage on the TestNG HTML report. I use TestNG to run my unit tests and I already know how to use an option to the @Test annotation to disable a test. I would like my test to

问题 How do I use TestNG throw new SkipException() effectively? Does anyone have an example? I tried throwing this exception at the start of a test method but it blows up the teardown, setup, methods, etc. , and has collateral damage by causing a few (not all) of the subsequent tests to be skipped also, and shows a bunch of garbage on the TestNG HTML report. I use TestNG to run my unit tests and I already know how to use an option to the @Test annotation to disable a test. I would like my test to

问题 I am developing an Android app that should convert a valid Alert string (i.e.: in XML string format) to CAP Alert object. To do so, I am using this Google-Cap-Library . Here is my code: import android.app.Activity; import android.os.Bundle; import com.google.publicalerts.cap.AlertOrBuilder; import com.google.publicalerts.cap.CapException; import com.google.publicalerts.cap.CapValidator; import com.google.publicalerts.cap.CapXmlParser; import org.xml.sax.SAXParseException; public class

问题 Does anyone have an example how to redefine an import in a java source file using the Eclipse JDT Core API? I have the following (which does not work) and it's driving me mad. try { for (IPackageFragmentRoot root : project.getPackageFragmentRoots()) { if (root.getElementName().equals("src")) { for (ICompilationUnit unit : root.getPackageFragment("soap.service.implementation.strongProfile.delegate").getCompilationUnits()) { System.out.println(unit.getElementName()); for (IImportDeclaration dec

问题 I've been debugging a C++ application in VS2015 and found that a number of my double variables were ending up a NaN following a divide by zero. While this is reasonable, I have floating point exceptions enabled (/fp:except) so I would have expected this to raise an exception. Looking at the MS help page, it doesn't list what causes a floating point exception. According to this answer to a related question, divide by zero is a floating point exception. This is not the case, i.e. the following

问题 I'm trying to execute a Google Dataflow Application, but it is throw this Exception java.lang.IllegalArgumentException: No filesystem found for scheme gs at org.apache.beam.sdk.io.FileSystems.getFileSystemInternal(FileSystems.java:459) at org.apache.beam.sdk.io.FileSystems.matchNewResource(FileSystems.java:529) at org.apache.beam.sdk.io.FileBasedSink.convertToFileResourceIfPossible(FileBasedSink.java:213) at org.apache.beam.sdk.io.TextIO$TypedWrite.to(TextIO.java:700) at org.apache.beam.sdk

问题 Getting this error since I started changing device for testing. Did some searching and none of it help because they are outdated. Any help is appreciated! xml file <ImageView android:id="@+id/loginpanel" android:layout_width="491px" android:layout_height="210dp" android:layout_marginStart="41dp" android:layout_marginTop="146dp" android:layout_weight="1" android:background="@drawable/loginpanel" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" />