Scanner Class in Java Tutorial | Input Methods with Examples
Learn Scanner Class in Java step by step in this beginner-friendly tutorial! In this video, we’ll explore Java input methods with examples, understand the problem with System.in, and see why the Scanner class is the best solution for handling user input in Java programs. Perfect for ICSE and ISC students preparing for board exams, as well as anyone starting with Java programming basics.
The Scanner class is part of the java.util package and provides simple methods like nextInt(), nextDouble(), nextFloat(), nextLong(), and nextShort() to take input from the user. In this video, we’ll cover everything from input streams in Java, delimiters in Scanner class, and best practices while reading input. If you’ve ever asked “Why do we need Scanner class in Java?” or “How to take user input in Java programs?” — this is your complete guide.
This video is especially helpful for CISCE Computer Applications (Class 9 & Class 10) and ISC Computer Science (Class 11 & Class 12) students. You’ll also find it useful if you’re a beginner who wants to build a strong foundation in Java programming fundamentals, Java input/output, and object-oriented programming basics. With coding examples, clear explanations, and exam-oriented coverage, you’ll be confident in using the Scanner class for your projects and board exam preparation.
NOTES & RESOURCES
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TIMESTAMPS
0:00 Introduction
1:19 What is an Input Stream in Java?
7:13 Problem with Standard Input Stream (System.in)
15:15 Need of Scanner Class (Solution to the Problem)
19:11 Advantages of Scanner Class
21:22 Basic of Scanner Class
24:14 Delimiters (Working of Scanner Class)
28:43 nextInt() Method
31:04 Code (nextInt() Method)
36:06 nextDouble() Method
37:20 Code (nextDouble() Method)
40:29 nextFloat() Method
41:22 Code (nextFloat() Method)
42:52 nextLong() Method
43:53 Code (nextLong() Method)
46:02 nextShort() Method
47:13 Code (nextShort() Method)
49:23 Best Practices while working with Scanner Class
52:11 BYE! BYE!
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