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Java > Learn Java > When to use transient variables?
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When to use transient variables?

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I have 7 years of programming experience and i have worked in india and abroad and currently I am focussing on big data

To know about transient , first we need to know about serialization concept .serialization makes an object's state persistent . It means that the object is converted into stream and store in a file . For any object which has to be transmitted over network needs to be converted into bytes .when you specify...
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To know about transient , first we need to know about serialization concept .serialization makes an object's state persistent . It means that the object is converted into stream and store in a file . For any object which has to be transmitted over network needs to be converted into bytes .when you specify transient you don't want the variable to be serialized .usually variables are marked as transient when they can be calculated from other variables .e.g . Say we know length and breadth of rectangle , then we can mark area of rectangle as transient since area is calculated from other variables.hope this helps! read less
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IT professional with 18+ years of exp. in C/C++,Java, Web Technologies, SQL and Corporate Trainer

whenever you want that variable to be not serialized
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Transient keyword suggests that the object should not be serialized, nor persisted. For example, when saving an object to a file, the transient variable values are will not be saved to that file when that object is saved to a file. Transient keyword can only be applied to fields or member variable. Applying...
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Transient keyword suggests that the object should not be serialized, nor persisted. For example, when saving an object to a file, the transient variable values are will not be saved to that file when that object is saved to a file. Transient keyword can only be applied to fields or member variable. Applying it to method or local variable is compilation error. read less
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International Corporate Trainer For dotnet Core ,Angular 2 ,C ,C++ and LPT Marathi for RBI Banking

variable that is created within an application session. At the end of the session, it is discarded or reset back to its default and not stored in a database. Contrast with persistent variable.
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Java,J2EE,Spring,Webservices,Hibernate,Cloud And Android Expertise

The members which ever you do not want to serialize just prefix with transient.
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Java/J2EE, B.E./B.Tech/MCA SubjectsTraining

When you want a variable to prevent from serialization, use transient keyword.
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Java Certified / Scrum Certified trainer with 8+ year industry experience

A transient variable is , whose state is not persisted. i.e. If you mark a variable as transient and serialize that object having this variable as a member , the state is not saved for future use. So when a de serialization is done the variable will not retain its old value but instead will take its...
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A transient variable is , whose state is not persisted. i.e. If you mark a variable as transient and serialize that object having this variable as a member , the state is not saved for future use. So when a de serialization is done the variable will not retain its old value but instead will take its default. , read less
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Software Developer, Expertise in Java/J2ee Technology.

Transient variables are useful :- when you want to transfer object on a network and don't want any particular variable of that object to be part of that transfer. So, use transient only on that variable. In this way all variables of the object will travel over the network with their current state except...
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Transient variables are useful :- when you want to transfer object on a network and don't want any particular variable of that object to be part of that transfer. So, use transient only on that variable. In this way all variables of the object will travel over the network with their current state except the transient variable. Serialization : It is a process of making object ready to move over network. It basically converts the object to sequence of bytes. read less
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7 yrs Experience along with Microsoft Certified Technology Specialist Trainer for .Net with C# as Language

If you mark an instance field of a Java class as 'transient', it means that it is not part of the persistent state of an object of that class. Its main use is when you're serializing an object. Any fields marked as 'transient' are simply ignored in the serialization process. This is equivalent in...
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If you mark an instance field of a Java class as 'transient', it means that it is not part of the persistent state of an object of that class. Its main use is when you're serializing an object. Any fields marked as 'transient' are simply ignored in the serialization process. This is equivalent in C# to marking a field with the NonSerialized attribute. read less
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transient variables are never serialized in java. It marks a member variable not to be serialized when it is persisted to streams of bytes. When an object is transferred through the network, the object needs to be 'serialized'. Serialization converts the object state to serial bytes. Those bytes are...
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transient variables are never serialized in java. It marks a member variable not to be serialized when it is persisted to streams of bytes. When an object is transferred through the network, the object needs to be 'serialized'. Serialization converts the object state to serial bytes. Those bytes are sent over the network and the object is recreated from those bytes. Member variables marked by the java transient keyword are not transferred, they are lost intentionally. please have a look at what serialization is.? and also refer this read less
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