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Java MCQ: Which tag is used in JSP to forward a request to another resource? a) <jsp:forward> b) <jsp:include> c) <jsp:param> d) <jsp:redirect> Answer: a) <jsp:forward> Explanation: The <jsp:forward> tag is used in JSP to forward a request to another resource, such as another JSP page, Servlet, or HTML page. This tag allows the current […]

Java MCQ: Which directive is used to set the content type of a JSP page? a) <%@ page contentType= %> b) <%@ include contentType= %> c) <%@ page type= %> d) <%@ content %> Answer: a) <%@ page contentType= %> Explanation: The <%@ page contentType= %> directive is used to set the content type of

Java MCQ: Which lifecycle method is called first when a JSP page is requested? a) init() b) service() c) jspInit() d) jspDestroy() Answer: c) jspInit() Explanation: The jspInit() method is called first when a JSP page is requested. This method is part of the JSP lifecycle and is called once when the JSP page is

Java MCQ: What is the purpose of the <%= %> tag in JSP? a) To declare a variable b) To include a file c) To output the result of an expression d) To create a comment Answer: c) To output the result of an expression Explanation: The <%= %> tag in JSP is used to

Java MCQ: Which tag is used to write Java code in a JSP page? a) <%@ %> b) <% %> c) <%= %> d) <%@ code %> Answer: b) <% %> Explanation: The <% %> tag is used to write Java code in a JSP page. This tag, known as a scriptlet, allows you to

Java MCQ: Which directive is used to include a file in a JSP page? a) <%@ include %> b) <%@ file %> c) <%@ page %> d) <%@ directive %> Answer: a) <%@ include %> Explanation: The <%@ include %> directive is used to include a file in a JSP page. This directive allows you

Java MCQ: What does JSP stand for? a) Java Standard Pages b) Java Servlet Pages c) JavaServer Pages d) JavaScript Pages Answer: c) JavaServer Pages Explanation: JSP stands for JavaServer Pages. JSP is a technology used for creating dynamic web content in Java. It allows developers to embed Java code directly into HTML pages, making

Java MCQ: Which annotation is used to define a native SQL query in JPA? a) @SQLQuery b) @NamedNativeQuery c) @Query d) @NativeQuery Answer: b) @NamedNativeQuery Explanation: The @NamedNativeQuery annotation in JPA is used to define a native SQL query. This annotation allows you to write SQL queries that are specific to the database and execute

Java MCQ: What is the purpose of the @Transient annotation in JPA? a) To mark a field as a primary key b) To exclude a field from persistence c) To define a column mapping d) To specify a join column Answer: b) To exclude a field from persistence Explanation: The @Transient annotation in JPA is

Java MCQ: Which annotation is used to mark a class as an entity listener in JPA? a) @EntityListener b) @Entity c) @Listener d) @EntityListeners Answer: d) @EntityListeners Explanation: The @EntityListeners annotation in JPA is used to mark a class or method as an entity listener. Entity listeners are used to intercept entity lifecycle events such

Java MCQ: What is the purpose of the @Embeddable annotation in JPA? a) To define an entity b) To define a composite primary key c) To define an embeddable class d) To specify a named query Answer: c) To define an embeddable class Explanation: The @Embeddable annotation in JPA is used to define an embeddable

Java MCQ: Which annotation is used to mark an entity as read-only in Hibernate? a) @Immutable b) @Transient c) @ReadOnly d) @Entity Answer: a) @Immutable Explanation: The @Immutable annotation in Hibernate is used to mark an entity as read-only. When an entity is annotated with @Immutable, Hibernate will not allow any modifications to the entity’s

Java MCQ: What does the @Inheritance annotation in JPA specify? a) It defines a column inheritance strategy b) It specifies the table inheritance strategy c) It marks an entity as abstract d) It defines a primary key generation strategy Answer: b) It specifies the table inheritance strategy Explanation: The @Inheritance annotation in JPA specifies the

Java MCQ: What is the role of the @JoinColumn annotation in JPA? a) It defines a foreign key column in a table b) It maps a field to a database column c) It specifies a named query d) It defines the table name Answer: a) It defines a foreign key column in a table Explanation:

Java MCQ: Which JPA annotation is used to define a many-to-many relationship? a) @OneToMany b) @ManyToMany c) @OneToOne d) @ManyToOne Answer: b) @ManyToMany Explanation: The @ManyToMany annotation is used to define a many-to-many relationship in JPA. This type of relationship means that multiple instances of one entity can be associated with multiple instances of another

Java MCQ: Which annotation is used to specify a query in JPA? a) @Query b) @NamedQuery c) @SQL d) @Select Answer: b) @NamedQuery Explanation: The @NamedQuery annotation is used in JPA to specify a named query. Named queries are pre-defined, static queries that are associated with an entity and can be executed multiple times with

Java MCQ: Which annotation is used to define a one-to-one relationship in JPA? a) @OneToOne b) @OneToMany c) @ManyToOne d) @ManyToMany Answer: a) @OneToOne Explanation: The @OneToOne annotation is used to define a one-to-one relationship in JPA. This type of relationship indicates that one instance of an entity is associated with exactly one instance of

Java MCQ: Which JPA annotation is used to define a one-to-many relationship? a) @ManyToMany b) @OneToOne c) @OneToMany d) @ManyToOne Answer: c) @OneToMany Explanation: The @OneToMany annotation is used to define a one-to-many relationship in JPA. This type of relationship indicates that one instance of an entity is associated with many instances of another entity.

Java MCQ: Which annotation is used to define a many-to-one relationship in JPA? a) @OneToMany b) @ManyToOne c) @OneToOne d) @ManyToMany Answer: b) @ManyToOne Explanation: The @ManyToOne annotation is used to define a many-to-one relationship in JPA. This type of relationship means that many instances of an entity can be associated with one instance of

Java MCQ: Which JPA annotation is used to define the table name for an entity? a) @Entity b) @Table c) @Column d) @PersistenceTable Answer: b) @Table Explanation: The @Table annotation in JPA is used to define the table name for an entity. This annotation is applied at the class level and specifies the name of

Java MCQ: Which annotation is used to automatically generate primary key values in JPA? a) @AutoKey b) @Id c) @GeneratedValue d) @KeyGenerator Answer: c) @GeneratedValue Explanation: The @GeneratedValue annotation is used in JPA to automatically generate primary key values. This annotation is applied to the primary key field of an entity and allows the database

Java MCQ: Which JPA annotation is used to define a column in a database table? a) @Table b) @Field c) @Column d) @Mapping Answer: c) @Column Explanation: The @Column annotation in JPA is used to define a column in a database table. It is applied to a field or property of an entity class and

Java MCQ: Which annotation is used to specify the primary key of an entity in JPA? a) @PrimaryKey b) @Id c) @Key d) @GeneratedValue Answer: b) @Id Explanation: The @Id annotation is used to specify the primary key of an entity in JPA. The field or property annotated with @Id represents the unique identifier for

Java MCQ: Which annotation is used to mark a class as an entity in JPA? a) @Table b) @Column c) @Entity d) @Persistence Answer: c) @Entity Explanation: The @Entity annotation is used to mark a class as an entity in JPA. An entity represents a table in the database, and each instance of the entity

Java MCQ: What does JPA stand for? a) Java Persistence API b) Java Platform API c) Java Performance API d) Java Process API Answer: a) Java Persistence API Explanation: JPA stands for Java Persistence API. It is a specification in Java that provides a standard for object-relational mapping (ORM) and data persistence. JPA allows developers