Learn Java from Scratch - A Beginner's Guide - Step 12 - Advanced Printing Output to Console with Java – Exercises

The video tutorial explains how to use System.out.printf to print calculated values, strings, and floating point numbers to the console. It begins with a recap of a previous exercise involving the calculation of 5 + 6 + 7, and demonstrates how to handle insufficient parameters, which can lead to exceptions. The tutorial also covers the use of format specifiers for different data types, such as integers, strings, and floating point numbers, and highlights the importance of matching the number of arguments with format specifiers. The video concludes with a brief mention of applying these concepts to a multiplication table problem.

What is the correct format specifier to use when printing an integer with System.out.printf?

• %s

• %d

• %f

• %c

What happens if you provide fewer arguments than format specifiers in System.out.printf?

• It prints default values for missing arguments.

• It ignores the extra format specifiers.

• It throws an exception.

• It prints null for missing arguments.

If you pass more arguments than format specifiers in System.out.printf, what will occur?

• It throws an exception.

• It prints null for extra arguments.

• It prints all arguments.

• It ignores the extra arguments.

Which format specifier should be used to print a string using System.out.printf?

• %f

• %x

• %s

• %d

What format specifier is used for printing floating-point numbers in System.out.printf?

• %d

• %i

• %s

• %f