initialization tag

16 questions

1 answers
271 views
0

Is there a reason why dynamic arrangement should not be declared like this?

The size of the array is determined at compile time, so to declare an array of dynamic sizes int size;scanf(%d, &size);int* arr = (int*)malloc(sizeof(int) * size); I was taught to do this, but eve...

array declare c c++ initialization

1 years ago

1 answers
94 views
0

What's the way to initialize a line in ArrayList?

ArrayList<String> places = new ArrayList<String>(); places.add(Buenos Aires); places.add(Córdoba); places.add(La Plata);For example, there is a source like this, and I want to reduce the i...

java collections arraylist initialization

2 years ago

1 answers
168 views
0

How do I initialize HashMap myself?

Map<String,String> test = new HashMap<String, String>{test:test,test:test};Is there a way to initialize HashMap like the code above? Is the code above grammatically correct?

java collections map initialization

2 years ago

1 answers
161 views
0

To initialize a C array

I want to initialize the same value from beginning to end when declaring an array.Now int myarr[30];for(i=0; i<30; i++) myarr[i] = 3;I'm doing a for statement like this, but not memset()myarr[all] ...

c array initialization array-initialize

2 years ago

1 answers
200 views
0

To declare and initialize ANSI Structure separately?

How can I declare and initialize the structure in a different place?For example, in this code,typedef struct MY_TYPE { boolean flag; short int value; double stuff;} } MY_TYPE;void function(void) { MY_...

c struct initialization

2 years ago

1 answers
104 views
0

Is there an easy way to initialize the entire C/C++ array to -1?

int array[100] = {0};I heard that the entire silver element is set to zero, so I thought I just need to set oneint array[100] = {-1};So the first element is minus 1, and the rest is zero.I don't want ...

initialization c++ c array default-value

2 years ago

2 answers
90 views
0

This is a c++ char generator initialization question

#include<iostream>using namespace std;class Test{ private: char* str; public: Test(char* name){ str=name; } void hello(void){ cout << str; }};int main(){ Test ptr(lee); ptr.hello(); ...

constructor initialization char

2 years ago

1 answers
93 views
0

When initializing the vector, can you do it like an array initialization?

int a[] = {1,2,3,4,5};Like this.

c++ vector initialization

2 years ago

1 answers
112 views
0

How to initialize private static members

How do I initialize private static member?There is an error in the way I did itld: 1 duplicate symbol for architecture x86_64clang: error: linker command failed with exit code 1 (use -v to see invocat...

c++ initialization static static-members

2 years ago

1 answers
126 views
0

Static initialization block

Until now, I understood that static initialization block is used when it is impossible to set the value of the static field with one line.But I don't know why I need a special block for that work. For...

java static initialization static-block

2 years ago

- 1 -

Popular Tags

python x 4647

android x 1593

java x 1494

javascript x 1427

c x 927

c++ x 878

ruby-on-rails x 696

php x 692

python3 x 685

html x 656