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java decimalformat

DecimalFormat是Java中一个用于格式化数字的类。它可以将数字按照指定的模式进行格式化，并可以进行数字的格式化输出。DecimalFormat类可以通过设置模式字符串来指定数字的格式。模式字符串由一系列特殊字符和格式化符号组成，用于定义数字的显示方式。例如，可以使用"#,##0.00"来...

开发笔记 ·2024-08-30

liMarquee演示12种不同的无缝滚动效果

很实用的一款liMarquee演示12种不同的无缝滚动效果实例代码!DOCTYPEhtmlhtmllang="zh-CN"headmetacharset="utf-8"titleliMarquee演示12种不同的无缝滚动效果-默认效果_sucaihuo/titleli...

开发笔记 ·2024-08-10

keepalivetime

keepalivetime是一个与计算机网络相关的术语，它表示在TCP连接中，一个空闲连接在被关闭之前可以保持活跃的时间，这个时间段通常用于在没有数据传输时节省资源，以及在网络状况不佳时确保连接的可靠性。...

开发笔记 ·2024-06-21

.idea文件夹和.iml文件是什么？

.idea文件夹当使用IDEA或PyCharm或WebStorm作为IDE时，会自动生成.idea/文件夹来存放项目的配置信息。其中包括版本控制信息、历史记录等等。idea对module配置信息之意，infomationofmoduleiml是intellijidea的工程配置文件，里面是当前project的一些配置信...

开发笔记 ·2024-05-06

ORA-56722: I/O request limit exceeded – call aborted

文档解释ORA-56722:I/Orequestlimitexceeded–callabortedCause:TheResourceManagerSWITCH_IO_REQSlimitwasexceeded.Action:Reducethecomplexityoftheupdateorquery,orcon...

IT技术学习 ·2023-07-28

ORA-38810: Implementation restriction: cannot drop edition that has a parent and a child

文档解释ORA-38810:Implementationrestriction:cannotdropeditionthathasaparentandachildCause:Thiserroroccurredbecauseanattemptwasmadetodropaneditionthathasaparentandac...

IT技术学习 ·2023-07-28

ORA-32150: Cannot perform operation on a null timestamp

文档解释ORA-32150:CannotperformoperationonanulltimestampCause:Thetimestampinvolvedinthisoperationisnull.Action:Usevalid,non-nulltimestampinstancetoperformthisoperat...

IT技术学习 ·2023-07-28

ORA-30053: invalid upper limit snapshot expression

文档解释ORA-30053:invalidupperlimitsnapshotexpressionCause:TheupperlimitsnapshotexpressionisgreaterthantheSQLstatementreadsnapshot.Action:Specifyavalidupperlimitsna...

IT技术学习 ·2023-07-28

ORA-41662: number of primitive events in the composite event exceeds maximum limit

文档解释ORA-41662:numberofprimitiveeventsinthecompositeeventexceedsmaximumlimitCause:Anattemptwasmadetocreateacompositeeventstructurewithmorethan32primitiveevents.A...

IT技术学习 ·2023-07-28

ORA-29821: specified primary operator does not exist

文档解释ORA-29821:specifiedprimaryoperatordoesnotexistCause:Thespecifiedprimaryoperatordoesnotexist.Action:Checktheprimaryoperatorandthesignaturespecified.ORA-29821...

IT技术学习 ·2023-07-28

ORA-48201: Field Length Exceeds Maximum [string] [string] [string]

文档解释ORA-48201:FieldLengthExceedsMaximum[string][string][string]Cause:Anillegalfieldlengthwasused.Action:Fixthecall.。ORA-48201：字段长度超出最大值[string][string][string]O...

IT技术学习 ·2023-07-28

ORA-32335: dimension must have at least one level

文档解释ORA-32335:dimensionmusthaveatleastonelevelCause:Anlevel-lessdimensionisnotallowed.Action:Donotdroptheonlylevelofadimension.ORA-32335:dimensionmusthaveatleas...

IT技术学习 ·2023-07-28

ORA-29543: Java command string not yet implemented

文档解释ORA-29543:JavacommandstringnotyetimplementedCause:AnattemptwasmadetouseaJavacommandthatisnotyetimplemented.Action:Donotusethecommand.ORA-29543是Oracle数据库中的错误...

IT技术学习 ·2023-07-28

ORA-26761: Standby Redo Logs not available for real time mining

文档解释ORA-26761:StandbyRedoLogsnotavailableforrealtimeminingCause:StandbyRedoLogsrequiredforrealtimeminingbydownstreamcaptureprocesswerenotavailable.Action:Checkt...

IT技术学习 ·2023-07-28

ORA-24053: PRIMARY_INSTANCE and SECONDARY_INSTANCE must be non-negative

文档解释ORA-24053:PRIMARY_INSTANCEandSECONDARY_INSTANCEmustbenon-negativeCause:OneofPRIMARY_INSTANCEorSECONDARY_INSTANCEwasnegative.Action:Specifynon-negativeintege...

IT技术学习 ·2023-07-28