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Beginning Java

No question too simple or small . . .

Howdy! This is your friendly forum for beginning Java. No question is too simple or too small!
(Posters with questions of any difficulty might consider the "Java in General" forum.)
Please check our Java Beginners FAQ!
We're all here to learn, so when responding to others, please focus on helping them discover their own solutions, instead of simply providing answers.

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Where is JRE 11 for JDK 11?

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Write the code of program Room?

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* Welcome Peggy Fisher

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Beginning Java

Reviews or feedback of basic java programs

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Print the position of the array in the output rather than the values

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Beginning Java

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Some suggestions for dealing with incorrect values or exceptions

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Help with a Prime Number 'For Loop' Program Please?

33 replies 2 1

Cannot find error in program that repeat a loop

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Best this month

console tic tac toe in java

39 replies

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33 replies 2 1

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27 replies

Chess problem: calculating the intersection point of two bishops with simple equations

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Complete newbie

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Help with compile error "incompatible types: Object cannot be converted to Vampire"

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Best IDE for Java

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Does code becomes slow if it has too many database reads operations from database table

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couldn't find class Main.java

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Copying from original to temporary file and renaming temporary to original?

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Beginning Java Forum at JavaRanch

package javax.websocket does not exist

1 hour ago 2 replies

Help determining who wins diagonally in a tic tac toe board.

2 hours ago 0 replies

Handling Large Amount of Triggered Events

3 hours ago 0 replies

array/looping question: "loop from n =100 to 3000"

3 hours ago 0 replies

Copy Constructor

9 hours ago 2 replies

Help with a Prime Number 'For Loop' Program Please?

10 hours ago 33 replies 2 1

What's wrong with my TicTacToe from an OO standpoint?

11 hours ago 1 reply

java/refactoring/ javafx - refactor 3 methods into 1

12 hours ago 2 replies

Chess problem: calculating the intersection point of two bishops with simple equations

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Possible use of Two Dimensional array?

1 day ago 8 replies 1

How to check a 2D Array for if it has an x n number of times.

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Can't understand what the foreach: command means

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Try and Catch statement not working for negative numbers

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Beginning Java

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Why does java.lang.NumberFormatException: Invalid double: keep appearing?

4 days ago 2 replies

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Does code becomes slow if it has too many database reads operations from database table

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Testing

How to test a load and save error?

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Beginning Java

Best this year

Where is JRE 11 for JDK 11?

Why are beginners not familiar with Streams?

Write the code of program Room?

How to check part of a string?

* Welcome Peggy Fisher

Reviews or feedback of basic java programs

Print the position of the array in the output rather than the values

Using Comparator to sort HashMap with ArrayList values

Is the functional programming syntax of Java less self explanatory then the old syntax?

File Scanner with java.lang.nullpointer error?

Basic OOP Rock Paper Scissors game. Bad OOP practice & stuck on finishing the game

Recursive binary search

console tic tac toe in java

Enumerations and Vectors

Traversing a stream of Characters

Checking for an object in Array

Some suggestions for dealing with incorrect values or exceptions

Is there a way to compare two objects on the same Map?

Help with a Prime Number 'For Loop' Program Please?

Cannot find error in program that repeat a loop

Best this month

console tic tac toe in java

Is there a way to compare two objects on the same Map?

Help with a Prime Number 'For Loop' Program Please?

Rock, Scissors, Paper. java with using charAt(0), can someone fix my programm

Chess problem: calculating the intersection point of two bishops with simple equations

Sorting an array of integers

How to build project architecture from project specification?

Complete newbie

Problem with code, 'else' without 'if'

Help with compile error "incompatible types: Object cannot be converted to Vampire"

Best IDE for Java

Linked List

Does code becomes slow if it has too many database reads operations from database table

couldn't find class Main.java

Copying from original to temporary file and renaming temporary to original?

Tic Tac Toe help with 2-Dimensional Array

Why doesn't Java remove need hot getter and setters in POJOs unlike C#

Health Records Profile Program

End your double value with 'd'

How to handle start of header character

Beginning Java Forum at JavaRanch

package javax.websocket does not exist

Help determining who wins diagonally in a tic tac toe board.

Handling Large Amount of Triggered Events

array/looping question: "loop from n =100 to 3000"

Copy Constructor

Help with a Prime Number 'For Loop' Program Please?

What's wrong with my TicTacToe from an OO standpoint?

java/refactoring/ javafx - refactor 3 methods into 1

Chess problem: calculating the intersection point of two bishops with simple equations

Singled Linked List vs Array

Possible use of Two Dimensional array?

How to check a 2D Array for if it has an x n number of times.

Is there a way to compare two objects on the same Map?

Can't understand what the foreach: command means

Try and Catch statement not working for negative numbers

Android Studio also recognizes any of the numbers of a randomly generated number and the same ones f

How do you match numbers on Android with Java?

Connect to SQLite & do work [SOLVED]

How to increase a double field every month or week (Period)?

Date null and String null

Recursive Class

Rock, Scissors, Paper. java with using charAt(0), can someone fix my programm

SOP Statement

Why does java.lang.NumberFormatException: Invalid double: keep appearing?

Sorting an array of integers

Tic Tac Toe help with 2-Dimensional Array

animation of a flashing orange lights

Error to convert the numbers to a char variable with the value of R or S or P ? can to convert?

ListNode

Does code becomes slow if it has too many database reads operations from database table

How to test a load and save error?

Health Records Profile Program

Difference between i++ and i=i++

Java