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Java Basics
course content

Course Content

Java Basics

Java Basics

1. Getting Started
Backend DevelopmentRole of Java in the Backend Java Advantages Memory Types In Java Java's SyntaxYour First ProgramComments
2. Basic Types and Operations
Primitive Data TypesChallenge: Primitive TypesMathematical Operations on charMathematical Operations in JavaIf-Else StatementSwitch-Case StatementChallenge: Weekday Switch
3. Loops
Introduction to LoopsWhile-LoopDo-While LoopChallenge: Building a Server Retry MechanismFor-Loop Increment and DecrementInfinite LoopChallenge: Filtering Numbers in a Loop
4. Arrays
What is Array?Using Loops with ArraysIndex Out Of BoundsTwo-Dimentional ArrayIteration In Two-Dimensional ArrayFor-Each Loop
5. String
What Is String? Basic Methods In StringPractical Applications of String MethodsChallenge: Filter Failure MessagesNullPointerException StringBuilderString Pool, Method Equals() Summary

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Challenge: Building a Server Retry Mechanism

Task

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Implement a program that attempts to connect to a server up to 5 times. If the connection is successful, the program prints a success message. If it fails after 5 attempts, it prints an error message.

  1. Start a do-while loop that will run up to 5 times.
  2. Increment the retry count in each iteration.
  3. Check if the current attempt matches the successful attempt number.
  4. If successful, print a success message and exit the loop.
  5. After the loop, check if the retry count reached 5.

Solution

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solution

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Section 3. Chapter 4
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book
Challenge: Building a Server Retry Mechanism

Task

Swipe to start coding

Implement a program that attempts to connect to a server up to 5 times. If the connection is successful, the program prints a success message. If it fails after 5 attempts, it prints an error message.

  1. Start a do-while loop that will run up to 5 times.
  2. Increment the retry count in each iteration.
  3. Check if the current attempt matches the successful attempt number.
  4. If successful, print a success message and exit the loop.
  5. After the loop, check if the retry count reached 5.

Solution

java

solution

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 3. Chapter 4
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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