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Data Types in Programming

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Questions and Answers

What is the default data type used for integral values unless there is a concern about memory space?

int (correct)

long

short

float

What data type is used to store a single character in Java?

double

float

boolean

char (correct)

Which of the following data types is used when a wider range than int is needed?

int

short

float

long (correct)

What is the purpose of the float data type?

To save memory in large arrays of floating-point numbers Signup and view all the answers

What is the default data type used for decimal values?

double Signup and view all the answers

Which class in the java.util package is used to read data from the standard input device and store data into variables?

Scanner Signup and view all the answers

What is the purpose of using the import statement in Java?

To import a specific class or package into the current file Signup and view all the answers

What is the syntax to import a specific class into the current file in Java?

import package_name.Class_name; Signup and view all the answers

What is the purpose of using the asterisk (*) wildcard character in an import statement?

To import all the classes contained in a particular package Signup and view all the answers

What is the hierarchy of integer data types in Java from lowest to highest precision?

byte, short, int, long Signup and view all the answers

What is the purpose of using the byte data type in Java?

To save memory space in large arrays Signup and view all the answers

How many built-in primitive data types are supported in Java?

8 Signup and view all the answers

In Java, what is the purpose of the import statement?

To import external libraries Signup and view all the answers

What is the return type of a method that does not return any value?

void Signup and view all the answers

What is the data type of the variable 'a' in the given code snippet?

int Signup and view all the answers

What is the purpose of the package statement in Java?

To declare a package Signup and view all the answers

What happens if the return type of a method is not compatible with the type of value being returned?

The program will not compile Signup and view all the answers

What is the data type of the variable 'name' in the given code snippet?

String Signup and view all the answers

Data Types in Programming

Choose a study mode

Podcast

Questions and Answers

What is the default data type used for integral values unless there is a concern about memory space?

What data type is used to store a single character in Java?

Which of the following data types is used when a wider range than int is needed?

What is the purpose of the float data type?

What is the default data type used for decimal values?

Which class in the java.util package is used to read data from the standard input device and store data into variables?

What is the purpose of using the import statement in Java?

What is the syntax to import a specific class into the current file in Java?

What is the purpose of using the asterisk (*) wildcard character in an import statement?

What is the hierarchy of integer data types in Java from lowest to highest precision?

What is the purpose of using the byte data type in Java?

How many built-in primitive data types are supported in Java?

In Java, what is the purpose of the import statement?

What is the return type of a method that does not return any value?

What is the data type of the variable 'a' in the given code snippet?

What is the purpose of the package statement in Java?

What happens if the return type of a method is not compatible with the type of value being returned?

What is the data type of the variable 'name' in the given code snippet?

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