What is the primary benefit of autoboxing in Java?

Which of the following benefits are given under the Employees State Insurance Act, 1948? (a) Sickness benefit, maternity benefit. (b) Disablement benefit, dependent benefit. (c) Medical benefit for employee and his dependents. (d) Funeral benefit.

A

(a) and (c)

B

(b) and (d)

C

all (a), (b), (c) and (d)

D

(a), (b) and (c)

JdbcTemplate that takes advantage of Java 1.5 features such as autoboxing, generics, and variable-length arguments to simplify its usage.

A

org.springframework.jdbc.core.JdbcTemplate

B

org.springframework.jdbc.core.simple.SimpleJdbcTemplate

C

org.springframework.jdbc.*

D

none of the mentioned

What is autoboxing in Java?

A

The automatic conversion of primitive types to their corresponding wrapper classes

B

The process of creating a new box

C

A feature for manually converting wrapper classes to primitive types

D

A feature for boxing objects

In Java, which classes are used for autoboxing and unboxing operations?

A

Exception classes (e.g., `RuntimeException`)

B

Wrapper classes (e.g., `Integer`, `Double`)

C

Collection classes (e.g., `ArrayList`, `HashMap`)

D

Exception classes (e.g., `RuntimeException`)

Which operator is used for autoboxing and unboxing in Java?

A

`==`

B

`+`

C

`&`

D

`=`

Which of the following statements is true about autoboxing in Java?

A

Autoboxing is introduced in Java 5.0 and later versions

B

Autoboxing requires explicit casting

C

Autoboxing is used only for primitive types

D

Autoboxing is not used in Java

Which of the following is an example of autoboxing in Java?

A

`String text = "Hello";`

B

`Integer num = 42;`

C

`Double result = 3.14;`

D

`String text = "Hello";`

In Java, which of the following is a valid autoboxing conversion?

A

`String` to `Integer`

B

`Integer` to `double`

C

`boolean` to `String`

D

`int` to `Integer`

A UNIX user named Bob wants to replace his chess program with a new one, but he is not sure where the old one is installed. Bob is currently able to run a Java chess program starting from his home directory /home/bob using the command: java -classpath /test:/home/bob/downloads/*.jar games.Chess Bob's CLASSPATH is set (at login time) to: /usr/lib:/home/bob/classes:/opt/java/lib:/opt/java/lib/*.jar What is a possible location for the Chess.class file?

A

\/test\/Chess.class

B

\/home\/bob\/Chess.class

C

\/test\/games\/Chess.class

D

\/user\/lib\/games\/Chess.class

What is the Message is displayed in the applet made by the following Java program?

import java.awt.*;import java.applet.*;public class myapplet extends Applet{ public void paint(Graphics g) { g.drawString("A Simple Applet", 20, 20); }}

A

A Simple Applet

B

A Simple Applet 20 20

C

Compilation Error

D

Runtime Error

What is the primary benefit of autoboxing in Java?

Related Questions