or tag

453 questions

1 answers
98 views
0

What is the difference between ArrayList and Vector?

What is the difference between the two data structures of ArrayList and Vector? Where should I use each of them?

2 years ago

2 answers
56 views
0

I want to use Android:DrawableTop on Android !

From the existing button, as follows <Button android:drawableTop=@drawable/~ />After implementing it, I took out the xml separately to use a different image depending on the state.<item an...

android drawabletop error

2 years ago

1 answers
125 views
0

How do I access the http://localhost web server from the Android emulator in Eclipse?

How do I connect to these local host web servers in the Eclipse Android Emulator http://localhost or http://127.0.1?I tried both of the addresses above, but it only says that I couldn't find the page....

android genymotion android-emulator

2 years ago

2 answers
117 views
0

You want to use Java variables repeatedly by numbering them. What should I do?

int Mnum0,Mnum1,Mnum2,Mnum3,Mnum4,Mnum5,Mnum6,,,,,,,,,,,,,,,,,,, for(int h=0;h<Mnum0.length;h++) for(int h=0;h<Mnum1.length;h++) for(int h=0;h<Mnum2.length;h++) for(int h=0;h<Mnum3.length;...

java for

2 years ago

1 answers
92 views
0

Python for Moon Question.

nStartYear = 2017 nEndYear = 2020 for year in range(nStartYear, nEndYear): for month in range(1,13): yyyymm = {0}{1:0>2}.format(str(year), str(month)) jsonData = getNatVisitor(yyyymm, national_c...

python for

2 years ago

1 answers
107 views
0

If you specify a pattern in advance and the tilt sensor moves according to the pattern, you want to write a code that sends out a signal.

Hello, I'm going to do a graduation work that sends out a specific output when I adjust the slope to the pattern.I use the tilt sensor above For example, if you set the pattern to front, back, left, a...

arduino tilt-sensor

2 years ago

1 answers
81 views
0

Python superposition for statement

If you write the code like above, the first variable tag is repeated, and then the second variable tags are addedCan't you repeat both at the same time?I want to repeat both in this form!I don't know ...

python crawling for

2 years ago

1 answers
65 views
0

I just asked a question, and I'm going to change the question. In the subprocess----

How do I run the following cmd command with subprocess.check_output?cd C:/Users/Administrator/Desktop/filesdir /b | find /i copy

subprocess error

2 years ago

1 answers
59 views
0

Preprocessor C treated linux as constant 1. Why is that?

Preprocessor C in GCC treated variable name linux as constant 1.//test.c:#include <stdio.h>int main(void){ int linux = 5; return 0;}Looking at the result of pretreating this with gcc-E test.c,...

linux c gcc c-preprocessor

2 years ago

1 answers
99 views
0

Differences between equals?, eql?, ===, and ==

Find out the differences between equals?, eql?, ===, and ==.What we've found so far isI haven't figured out what eql? is doing with default yet, and I'm not sure I just looked through it.Ruby has many...

ruby operator compare

2 years ago

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