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How can I catch Null Referencee Pointer exception

4th Feb 2017, 9:34 AM

omar

1 голос

We known that the * operator is used for declaration of pointer and we can only put the address in the pointer eg int *p=&a;

26th Dec 2016, 6:23 AM

Mattis BETOURNE Clara HORVENO

2 голосов

SOLVE I need some exercise. I just finish data,array and pointer

30th Jan 2018, 7:19 PM

Ankit Rathore

c++exercise

2 голосов

Does derived class inherits v pointer from base class and uses that only or it have its own v pointer also?

27th Aug 2018, 4:24 AM

Muhamad Fathi Zuhaili

1 голос

Is there any mistakes in this code?

17th Jan 2020, 1:26 PM

Amit chavare

pointer

0 голосов

What is pointer & why it is used?

2nd Jul 2019, 1:51 PM

Tony xu

c#c++javascript

0 голосов

Please explain how this pointer still hold the value of variable a?

18th Nov 2016, 4:11 PM

Bharath

c functions pointers

1 голос

Program to find Largest no of array using pointer in c++

29th Jun 2020, 6:07 AM

SAURAV KUMAR

3 голосов

What is the meaning of these two declarations?

2nd Apr 2018, 5:28 PM

Er. Rohit Jaiswal

c pointer

6 голосов

C++ program for student details& print the same pointer to object & pointer to member function.create a class student

6th Jan 2019, 11:04 AM

Vijaya Mishra

-6 голосов

Doubt in pointers in C programming

14th Nov 2017, 1:35 AM

SRI VISHNU T

doubt pointer

1 голос

9 ответов

13th May 2021, 1:47 PM

Yogeshwaran P

Why typecasting is needed while dereferencing a void pointer ?

void

1 голос

How to point to a function that returns a pointer

15th Jul 2019, 2:35 AM

Krishna Kumar

c functions pointer to

0 голосов

4 ответов

7th Jan 2018, 9:57 PM

Yusuf

When we need to point to another pointer in cpp ?

cpp pointers

1 голос

How should I practice to be fluent using pointer in "C"?

12th Jan 2017, 7:20 PM

mojtaba noghabaee

c pointers

1 голос

Can I declare pointer to function with default parameters? If can, the how?

31st Oct 2018, 3:49 AM

Ye Oo

2 голосов

need help getting member values from an object pointer in a class function

8th Oct 2019, 9:54 AM

UraL

c++class dereferencing function help pointers

0 голосов

C#: How to get the element the mouse pointer is directly over

30th Jun 2021, 3:36 AM

AndXr

c#csharp

1 голос

Pointer is a hard lesson for me can someone explain it in a simple way

15th Oct 2018, 7:42 PM

John Ansa

cpp

7 голосов

Can you take input from a user for a pointer [solved]

16th Apr 2018, 7:34 PM

Fafali.

c input pointers

0 голосов

Is int variable value can be stored in float pointer ?

25th Feb 2021, 8:24 PM

Sekiro

0 голосов

What is the difference between a pointer anf a memory location?

26th Apr 2022, 12:48 PM

Himanshu Sharma

pointers

1 голос

How to convert type of pointer by using type casting?

20th Oct 2018, 1:58 PM

Lalith Adithya

1 голос

Can we access a private variable using pointer in C++

20th Jun 2016, 8:23 PM

Waleed Ali

1 голос

memory for class object having pointer as data member

5th Feb 2017, 6:45 AM

Suparno Karmakar

c++constructor destructor memory pointer

0 голосов

I dont want my border expand while i put pointer on it

18th Jun 2020, 9:28 AM

Ketan Lalcheta

css

0 голосов

How to use pointer to more than one dimensional array ?

27th Nov 2022, 5:43 AM

MohdSalmanAnsari

arrays pointers

1 голос

When java does not support pointer then why we will get NullPointerException

12th Jun 2020, 9:44 AM

Thnr

java

0 голосов

what does pointer index -1 means ? Help me understand output of code

16th Aug 2020, 9:34 AM

CodeBreaker

array c++index pointer

1 голос

Why can't I use char type with scanf() and do the void pointer in C language?

9th Jun 2020, 5:05 PM

Ketan Lalcheta

c_language void_pointers

2 голосов

12 ответов

15th Jan 2020, 9:33 AM

Manthan Gohel

this pointer only works within class.....not outside the class for calling the members?whyyyyy??

c++classes this

3 голосов

why did the main pointer display 1? What this means?

13th Sep 2016, 10:00 PM

Bint E Asif

c++pointers

0 голосов

type in a code to declare a pointer 'ptr ' to int and assign it value to var's address

11th Oct 2018, 8:40 PM

MakarovDs

john wells

-4 голосов

Object as pointer in method : call by value or reference

21st Aug 2018, 1:23 AM

Panshak Yabal

c++callbyref callbyvalue pointer

0 голосов

Why a pointer * is inputted for expressions alonem

4th Apr 2021, 7:17 AM

Ketan Lalcheta

c code codeplayground comments display

0 голосов

What is the use of void pointer in c++?

29th Jul 2020, 2:28 PM

Dev Anand

0 голосов

Display an alert when the mouse pointer is over the div tag

19th Mar 2017, 6:21 PM

sukanyapatil

javascript

0 голосов

Pls find error in the code nd fix it.

23rd Feb 2017, 9:51 PM

Shaiv Roy

pointer

0 голосов

Plz help me in Swaping two numbers using pointer # without any third variable

11th Nov 2018, 3:39 PM

Rajat Kumar

c swap

0 голосов

7 ответов

5th Jun 2020, 4:19 AM

Anjali Singh

Y does the pointer shows 88 even after getting deleted?

0 голосов

What ia the cursor appears as a pointer in paragraph?

10th Oct 2017, 4:37 PM

suryapoojary

css mouse-cursor

0 голосов

How does this output comes? I ask this question,because i found this question in C challenges...

17th Aug 2016, 2:21 PM

Pravin Ravichandran

difference output pointer

7 голосов

15 ответов

21st Oct 2020, 2:05 PM

Yogeshwaran P

What does pointing to a pointer mean in Java?

java

0 голосов

What is size of generic pointer in C++ (in 32-bit platform) ?

17th Aug 2017, 8:11 PM

RISHI AGARWAL

all question this try

1 голос

On what type of data structures does a pointer fall?

27th Sep 2017, 2:21 AM

Shyam Chouhan

challenges sololearn

1 голос

Isn't it bad if we use unique pointer in this case

29th Mar 2017, 1:29 PM

P.Sai Sumanth

c++chainofresponsibility cor shared_ptr smart_pointer unique_ptr

0 голосов

is there a way to convert pointer to a string in c++

2nd Oct 2023, 7:51 AM

Ketan Lalcheta

c++conversion data of pointer string types

5 голосов

Write a function Adder() that receives a pointer to an integer array as input, and uses this pointer to return the sum of eleme

12th Nov 2017, 1:07 PM

shobhit

c++functions pointers

0 голосов

How to find the given no is odd or even using pointer to structure

4th Dec 2019, 4:13 PM

Naveed Ahmed

2 голосов