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Using Calendar in java. Getting a compilation error of cannot find symbol [duplicate]

What does a “Cannot find symbol” compilation error mean?Method undefined for type JavaDoes a finally block always get executed in Java?How to get an enum value from a string value in Java?Get current stack trace in JavaJava Date vs CalendarGetting the Current Working Directory in JavaIntelliJ inspection gives “Cannot resolve symbol” but still compiles codeHow to get another Calendar result from same instance?What does a “Cannot find symbol” compilation error mean?Java compiler errors in UbuntuWhy Calendar.SEPTEMBER is not working?

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0

This question already has an answer here:

• 
  Method undefined for type Java
  
  1 answer
  
  


• 
  What does a “Cannot find symbol” compilation error mean?
  
  10 answers
  
  

I am getting error for cannot find symbol

getInstance(),Calendar.DATE,Calendar.MONTH,Calendar.YEAR

This only occurs when I am running offline on VS Code.
On running in on an online IDE (Hacker Rank), I get compilation successful.
JDK 11 on desktop, JDK 8 on Hacker Rank.
I have tried running it on multiple IDEs and get compilation successful only on JDK 8

import java.util.*;
import java.lang.*;
import java.io.*;

class Calendar 
 public static void main(String[] args) 
 Scanner sc = new Scanner(System.in);
 int day = sc.nextInt();
 int month = sc.nextInt();
 int year = sc.nextInt();
 Calendar c = Calendar.getInstance();
 c.set(Calendar.DATE, day);
 c.set(Calendar.MONTH, month - 1);
 c.set(Calendar.YEAR, year);

 System.out.println(c.getDisplayName(Calendar.DAY_OF_WEEK, Calendar.LONG, new Locale("en", "US")).toUpperCase());
 

java java.util.calendar

share|improve this question

edited Mar 24 at 10:27

Nuruddin

asked Mar 24 at 10:15

NuruddinNuruddin

33

marked as duplicate by Ole V.V. java
Users with the  java badge can single-handedly close java questions as duplicates and reopen them as needed.

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Mar 24 at 13:12

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I recommend you don’t use Calendar. That class is poorly designed and long outdated. For your use you probably need LocalDate from java.time, the modern Java date and time API instead: LocalDate.of(year, month, day).
  
  – Ole V.V.
  Mar 24 at 10:24
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  By VS do you mean Visual Studio?? Could you show us your import statement?
  
  – Ole V.V.
  Mar 24 at 10:25
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Can you reduce your code to a minimum that still reproduces the error and then include full source code? It sounds a lot like you're missing an import but can't be sure.
  
  – JussiV
  Mar 24 at 10:25
  

  
  
  
  


• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  
  Don't name your class Calendar when you what do use java.util.Calendar!
  
  – Edwardth
  Mar 24 at 10:30
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Easy and modern way: System.out.println(LocalDate.of(year, month, day).getDayOfWeek());. Prints for example SUNDAY..
  
  – Ole V.V.
  Mar 24 at 13:16
  

  
  
  
  

add a comment | 

0

This question already has an answer here:

• 
  Method undefined for type Java
  
  1 answer
  
  


• 
  What does a “Cannot find symbol” compilation error mean?
  
  10 answers
  
  

I am getting error for cannot find symbol

getInstance(),Calendar.DATE,Calendar.MONTH,Calendar.YEAR

This only occurs when I am running offline on VS Code.
On running in on an online IDE (Hacker Rank), I get compilation successful.
JDK 11 on desktop, JDK 8 on Hacker Rank.
I have tried running it on multiple IDEs and get compilation successful only on JDK 8

import java.util.*;
import java.lang.*;
import java.io.*;

class Calendar 
 public static void main(String[] args) 
 Scanner sc = new Scanner(System.in);
 int day = sc.nextInt();
 int month = sc.nextInt();
 int year = sc.nextInt();
 Calendar c = Calendar.getInstance();
 c.set(Calendar.DATE, day);
 c.set(Calendar.MONTH, month - 1);
 c.set(Calendar.YEAR, year);

 System.out.println(c.getDisplayName(Calendar.DAY_OF_WEEK, Calendar.LONG, new Locale("en", "US")).toUpperCase());
 

java java.util.calendar

share|improve this question

edited Mar 24 at 10:27

Nuruddin

asked Mar 24 at 10:15

NuruddinNuruddin

33

marked as duplicate by Ole V.V. java
Users with the  java badge can single-handedly close java questions as duplicates and reopen them as needed.

StackExchange.ready(function()
if (StackExchange.options.isMobile) return;

$('.dupe-hammer-message-hover:not(.hover-bound)').each(function()
var $hover = $(this).addClass('hover-bound'),
$msg = $hover.siblings('.dupe-hammer-message');

$hover.hover(
function()
$hover.showInfoMessage('',
messageElement: $msg.clone().show(),
transient: false,
position: my: 'bottom left', at: 'top center', offsetTop: -7 ,
dismissable: false,
relativeToBody: true
);
,
function()
StackExchange.helpers.removeMessages();

);
);
);
Mar 24 at 13:12

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I recommend you don’t use Calendar. That class is poorly designed and long outdated. For your use you probably need LocalDate from java.time, the modern Java date and time API instead: LocalDate.of(year, month, day).
  
  – Ole V.V.
  Mar 24 at 10:24
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  By VS do you mean Visual Studio?? Could you show us your import statement?
  
  – Ole V.V.
  Mar 24 at 10:25
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Can you reduce your code to a minimum that still reproduces the error and then include full source code? It sounds a lot like you're missing an import but can't be sure.
  
  – JussiV
  Mar 24 at 10:25
  

  
  
  
  


• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  
  Don't name your class Calendar when you what do use java.util.Calendar!
  
  – Edwardth
  Mar 24 at 10:30
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Easy and modern way: System.out.println(LocalDate.of(year, month, day).getDayOfWeek());. Prints for example SUNDAY..
  
  – Ole V.V.
  Mar 24 at 13:16
  

  
  
  
  

add a comment | 

This question already has an answer here:

• 
  Method undefined for type Java
  
  1 answer
  
  


• 
  What does a “Cannot find symbol” compilation error mean?
  
  10 answers
  
  

I am getting error for cannot find symbol

getInstance(),Calendar.DATE,Calendar.MONTH,Calendar.YEAR

This only occurs when I am running offline on VS Code.
On running in on an online IDE (Hacker Rank), I get compilation successful.
JDK 11 on desktop, JDK 8 on Hacker Rank.
I have tried running it on multiple IDEs and get compilation successful only on JDK 8

import java.util.*;
import java.lang.*;
import java.io.*;

class Calendar 
 public static void main(String[] args) 
 Scanner sc = new Scanner(System.in);
 int day = sc.nextInt();
 int month = sc.nextInt();
 int year = sc.nextInt();
 Calendar c = Calendar.getInstance();
 c.set(Calendar.DATE, day);
 c.set(Calendar.MONTH, month - 1);
 c.set(Calendar.YEAR, year);

 System.out.println(c.getDisplayName(Calendar.DAY_OF_WEEK, Calendar.LONG, new Locale("en", "US")).toUpperCase());
 

java java.util.calendar

share|improve this question

edited Mar 24 at 10:27

Nuruddin

asked Mar 24 at 10:15

NuruddinNuruddin

33

import java.util.*;
import java.lang.*;
import java.io.*;

class Calendar 
 public static void main(String[] args) 
 Scanner sc = new Scanner(System.in);
 int day = sc.nextInt();
 int month = sc.nextInt();
 int year = sc.nextInt();
 Calendar c = Calendar.getInstance();
 c.set(Calendar.DATE, day);
 c.set(Calendar.MONTH, month - 1);
 c.set(Calendar.YEAR, year);

 System.out.println(c.getDisplayName(Calendar.DAY_OF_WEEK, Calendar.LONG, new Locale("en", "US")).toUpperCase());
 

share|improve this question

edited Mar 24 at 10:27

Nuruddin

asked Mar 24 at 10:15

NuruddinNuruddin

33

share|improve this question

edited Mar 24 at 10:27

Nuruddin

asked Mar 24 at 10:15

NuruddinNuruddin

33

asked Mar 24 at 10:15

NuruddinNuruddin

33

asked Mar 24 at 10:15

NuruddinNuruddin

33

1 Answer
1

active

oldest

votes

2

Your problem is that you have named your class Calendar, and then are trying to use a system class named Calendar. Calling Calendar.getInstance() is failing to compile because the compiler is looking for a method named getInstance() to be defined in YOUR Calendar class. Name your class something else, and I think your code will compile and work fine.

share|improve this answer

answered Mar 24 at 10:46

SteveSteve

3,9521728

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Also calling the Java until class with full name will work, like so: java.util.Calendar c = java.util.Calendar.getInstance(); ...
  
  – JussiV
  Mar 24 at 11:56
  

  
  
  
  

add a comment | 

2

Your problem is that you have named your class Calendar, and then are trying to use a system class named Calendar. Calling Calendar.getInstance() is failing to compile because the compiler is looking for a method named getInstance() to be defined in YOUR Calendar class. Name your class something else, and I think your code will compile and work fine.

share|improve this answer

answered Mar 24 at 10:46

SteveSteve

3,9521728

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Also calling the Java until class with full name will work, like so: java.util.Calendar c = java.util.Calendar.getInstance(); ...
  
  – JussiV
  Mar 24 at 11:56
  

  
  
  
  

add a comment | 

2

Your problem is that you have named your class Calendar, and then are trying to use a system class named Calendar. Calling Calendar.getInstance() is failing to compile because the compiler is looking for a method named getInstance() to be defined in YOUR Calendar class. Name your class something else, and I think your code will compile and work fine.

share|improve this answer

answered Mar 24 at 10:46

SteveSteve

3,9521728

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Also calling the Java until class with full name will work, like so: java.util.Calendar c = java.util.Calendar.getInstance(); ...
  
  – JussiV
  Mar 24 at 11:56
  

  
  
  
  

add a comment | 

Your problem is that you have named your class Calendar, and then are trying to use a system class named Calendar. Calling Calendar.getInstance() is failing to compile because the compiler is looking for a method named getInstance() to be defined in YOUR Calendar class. Name your class something else, and I think your code will compile and work fine.

share|improve this answer

answered Mar 24 at 10:46

SteveSteve

3,9521728

share|improve this answer

answered Mar 24 at 10:46

SteveSteve

3,9521728

answered Mar 24 at 10:46

SteveSteve

3,9521728

answered Mar 24 at 10:46

SteveSteve

3,9521728