ViewTube

How to let users supply numeric input to your programs.

Arrays are reference variables, which means simple assignment doesn't make a copy of the values.

Using the Scanner Class and JOptionPane class.

A while loop lets your programs repeatedly ask for user input until they enter a “sentinel value” to tell you they have finished.

What You'll Learn: This problem includes * Arrays * Loops (FOR, WHILE) * Decisions (IF) * User Input, and more! I created a ...

Working with parallel arrays in java.

The video shows how to use Java to input an integer in using a loop that keeps asking for a valid input if the user inputs a negative ...

Open a text file using the Java Scanner. Read and display the contents of the file either line by line or by individual fields on each ...

Use a *while* loop to repeatedly get input in a program.

Arrays can be accessed via pointers, and that is the preferred way to iterate through an array in C.

What's going on behind the scenes when you call a method in Java?

This video shows the building blocks you use for every Java program you'll write in this course. One additional note: The program ...

Using if, if else, and while statements in Java.

Handling a two-dimensional arrays that represent a matrix of rows and columns.

ArrayLists let you store an arbitrary number of items, unlike Arrays, which have a fixed length. Here are some of the most-used ...

These videos were made for DiscoverE's second MOOC, Intro to App Design, which was released in October 2015. This is a free ...

How to pass arrays to methods and return arrays as results.

How to read a line of text into a string, and how to get specific characters from it.

What's the “correct“ way to indent? Where should you put braces in your code? All of this is part of a Java programming style ...

In this video tutorial, we'll explore the powerful Java Supplier interface and learn how it can simplify your code by generating data ...

In a preceding video, we had duplicated code to read the user input outside the loop and inside the loop. To avoid duplicated ...

Here are the most common methods in Java's Math class.

Here are two approaches to solving the problem. (I'm not entirely happy with this video; the script just didn't seem to “click” for me, ...

And there's some style hints here for doing user input. And talks about doing the prompts, printing blank lines again and blank ...

The File class lets you get information about a disk file. See this URL for information about absolute vs. relative path names: ...