嘿,伙计们,我对编程非常陌生,我正在练习一个习题,我正在做练习,我试着编译我已经输入的代码,但返回的结果是year not been initialized,投资也出现了同样的错误。这是我现在拥有的代码。我做错了什么?顺便说一下,变量未来=投资* (1 +interest_rate)^年是一个指数。
import java.lang.*;
public class Exercise63Page173
{
public static void main(String [] args)
{
int year;
double investment;
final d
导入WbCloudFaceLiveSdk和WbCloudNormal没有报错,导入WbCloudFaceWillSdk就报错,手动导入找不到WbCloudFaceWillSdk.aar文件,报错如下
Could not determine the dependencies of task ':app:compileDebugJavaWithJavac'.
> Could not resolve all task dependencies for configuration ':app:debugCompileClasspath'.
> Coul
我尝试在方法调用中声明一个字符串数组,如下所示:
if (emailYaml.keySet().containsAll(new String[]{"mailto","subject","text"}))
我不完全确定这是否在任何情况下都是最好的方法(我是编程新手),但不管怎样,Eclipse告诉我:
The method containsAll(Collection<?>) in the type Set<String> is not applicable for the arguments (String[])
有人能提
执行terraform init 时,报错找不到registry.terraform.io/hashicorp/tencentcloud
报错:provider registry│ registry.terraform.io does not have a provider named registry.terraform.io/hashicorp/tencentcloud
请问一下,我使用的gradle5.4版本的,为什么使用api project(‘:xxxxx’)这样会报错,用compile就可以没问题,报错信息:
Could not find method api() for arguments [project ':xxxxxxxxxxx'] on object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler.
场景:
cos Java Sdk 上传本地文件报错。在文件比较小的时候正常上传,文件一旦超过百兆就会偶发报错
报错信息如下:
com.qcloud.cos.exception.CosClientException: Upload canceled
at com.qcloud.cos.transfer.UploadMonitor.call(UploadMonitor.java:149)
at com.qcloud.cos.transfer.UploadMonitor.call(UploadMonitor.java:47)
at java.uti
我在Eclipse中编程,发现了一些奇怪的东西...
如果我像这样创建一个类:
public abstract class Test {
public Test(Object obj) {}
}
显然,任何子类都需要填充super()。
同样的情况也适用:
public abstract class Test {
public Test(Object[] obj) {}
}
那么,当我执行以下操作时,我的集成开发环境为什么不报错,也不提供super()
public abstract class Test {
public Test(Object... obj) {}
Xshell6执行 docker build ‐t yi/centos7‐ssh .命令时总是报错
报错信息如下:
No match for argument: net-tool
Error: Unable to find a match
The command '/bin/sh -c yum install -y passwd openssh-server openssh-clients initscripts net-tool' returned a non-zero code: 1