or tag

453 questions

1 answers
98 views
0

If you use Java Iterator, you fall into an infinite loop.

If you do it like this, it's printed indefinitely. What's wrong with this?I don't understand the exact purpose of Iteratoriter = set1.iterator();import java.util.*;public class Generic1 { public stati...

java iterator tryhelloworld

2 years ago

1 answers
133 views
0

Structure variable forward declaration, prototype declaration error

I wanted to use a queue with a Problem structure variable as a type, so I declared a variable, but there was an error, so I'm uploading a question.For example, if you have a structureProblem{};I want ...

struct prototype queue vector forward-declaration

2 years ago

1 answers
109 views
0

[jQuery] How do I select only options with values in a particular select?

I'm a beginner developer. I received a request for development, but I'm posting a question because I thought there's a better way.<select id=selectid> <option value=>Select</option> ...

jquery javascript selector

2 years ago

1 answers
112 views
0

In what order does i = (i, ++i, 1) + 1; run?

#include <stdio.h>int main(void) { int i = 5; i = (i, ++i, 1) + 1; printf(%d\n, i); return 0;}I'm Newbie who is studying about the Undefined Behavior.I was experimenting with this and that with ...

c expression compiler-warning comma-operator operator

2 years ago

1 answers
72 views
0

I want to understand how to express colors on Android. (Expressing it in six digits)

I'm studying how to express colors on Android. I gave the background color to the linear layout as shown below.If you test it, there's a bit of transparency in gray.<gradient android:startColor=#b4...

android hex color transparency

2 years ago

1 answers
76 views
0

An error called UnicodeDecodeError occurred while coming to view the csv file in Pandas.

I'm sure I followed the example on the blog, but I don't know why there's an error with mine. I'm sure there's a 111.csv file, but I get this error. import pandas as pdasdf=c:\\Users\\KJY\\Desktop\\11...

python pandas unicodedecodeerror

2 years ago

1 answers
79 views
0

(java)Inheritance and constructor call problems

// Parent Classclass Person { private String name; private int age; public Person(String name, int age) { this.name = name; this.age = age; } public void setName(String name) { this.name = name; } p...

java constructor inheritance

2 years ago

1 answers
121 views
0

What's the difference between taking a dot (.) and doing ->?

What is the difference between pointing a dot on an object (.) and doing -> in C++?I hate pointers.

c++ operator pointer

2 years ago

1 answers
80 views
0

I want to know the difference between for and while.

I'd like to know the difference between the JavaScript loop statement, why and for.

javascript while-loop for

2 years ago

1 answers
62 views
0

SyntaxError: expected expression, got '}'

I'm learning JavaScript with Judati.It's a question written in a while sentence.I need to print out the following, and the code I wrote is var num = 99;while (num>=1) { console.log(num + bottles of...

javascript syntax-error

2 years ago

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