Accenture Application Developer Interview Questions, Process, and Tips

Volatile keyword is used to indicate that a variable's value can be changed unexpectedly by external factors.

• Volatile keyword is used in multithreaded programming to ensure that the variable's value is always read from memory and not from cache.

• It is also used in embedded systems programming to indicate that the variable's value can be changed by hardware interrupts.

• Example: volatile int count = 0; // variable can be c...read more

Transient keyword is used in Java to indicate that a variable should not be serialized.

• Transient keyword is used with variables to exclude them from serialization process.

• It is used to mark a variable as non-persistent.

• Transient variables are not saved during serialization and are initialized to default value during deserialization.

• Example: private transient int age; // age will not be serialized

Hibernate get() returns object by id, load() returns proxy object until accessed.

• get() method returns the object from the database by its id.

• load() method returns a proxy object until it is accessed, then it loads the object from the database.

• get() method returns null if the object is not found in the database, while load() method throws an exception.

• get() method is eager loading, while load() method is lazy loading.

Talend is popular due to its open-source nature, ease of use, and ability to integrate with various systems.

• Talend is open-source, making it accessible to a wide range of users.

• It has a user-friendly interface, allowing developers to easily create and manage data integration workflows.

• Talend can integrate with various systems, including cloud-based platforms like AWS and Azure.

• It offers a wide range of connectors and c...read more

Talend and Pentaho are both open-source data integration tools, but Talend is more user-friendly while Pentaho has better reporting capabilities.

• Talend has a drag-and-drop interface and a large library of pre-built components, making it easier for non-technical users to create data integration workflows.

• Pentaho has a more robust reporting engine and better visualization capabilities, making it a better choice for busin...read more

Talend is an ETL tool used for data integration. Jobs are workflows created in Talend to perform specific tasks. Components are pre-built functions used in jobs.

• Jobs are created in Talend to perform specific tasks such as data extraction, transformation, and loading.

• Components are pre-built functions that can be used in jobs to perform specific actions such as reading data from a file or database, transforming data, an...read more

Hierarchy in Talend refers to the organization of data flow components in a job.

• Hierarchy is important for understanding the flow of data in a job.

• Components can be organized into subjobs and routines for better organization.

• Hierarchy can be viewed and edited in the Talend Studio interface.

• Example: A job may have a parent job with multiple child subjobs for different tasks.

tmap is used to transform data in Talend, tjoin is used to join data. There are different types of connections, truncate and delete are different ways to remove data from a table. ETL stands for Extract, Transform, Load. Triggers are database objects that are automatically executed in response to certain events. There are different types of joins.

• tmap is used for data transformation in Talend

• tjoin is used for joining d...read more

Consider project requirements, resources, timeline, and potential roadblocks. Use agile methodology for continuous progress.

• Identify project requirements and goals

• Assess available resources and timeline

• Anticipate potential roadblocks and plan accordingly

• Use agile methodology for continuous progress

• Regularly communicate with stakeholders for feedback and updates