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Java Program Structure and printf Method Quiz

10 Questions

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Java Program Structure and printf Method Quiz

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Questions and Answers

What is the first argument of the printf method in Java?

A placeholder for a value

A list of format specifiers

A format string (correct)

A comma-separated list of data

Which class in Java enables a program to read data for use in a program?

FileReader class

InputReader class

Scanner class (correct)

DataReader class

Which of the following is a primitive type in Java?

String

Array

Integer

short (correct)

What are the primitive types in Java?

boolean, byte, int, short, long, float, double, char (C) Signup and view all the answers

What does each format specifier in Java's printf method start with?

A percent sign (%) (C) Signup and view all the answers

Which method in Java is used to display formatted data with multiple method arguments placed in a comma-separated list?

System.out.printf (D) Signup and view all the answers

Which class in Java enables a program to read data for use in a program?

Scanner (D) Signup and view all the answers

Which of the following is a Java primitive type?

double (D) Signup and view all the answers

What does each format specifier in Java's printf method start with?

Percent sign (%) (B) Signup and view all the answers

Which Java arithmetic operation has the highest precedence?

Parentheses (C) Signup and view all the answers

Study Notes

Java Basics and Key Concepts

The first argument of the printf method in Java is a format string that specifies how to format the subsequent arguments.
The Scanner class in Java enables programs to read input data from various sources such as keyboard input, files, and streams.
Primitive types in Java include int, char, boolean, byte, short, long, float, and double. These are basic data types built into the language.
Each format specifier in Java's printf method begins with a percent sign (%) followed by a character that determines the type of value to be formatted (e.g., %d for integers, %f for floating-point numbers).
The System.out.printf method in Java is used to display formatted data with multiple arguments, formatting them according to the specified format string.
Among the Java arithmetic operations, the multiplication (*) and division (/) operations have higher precedence than addition (+) and subtraction (-), and both have the same precedence level.

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Description

Test your knowledge of the basic Java program structure and printing to the console using the printf method. This quiz covers the format printing with printf, system.out.printf method, method arguments, format specifiers, and more.