io tag

409 questions

2 answers
49 views
0

Android Studio java.lang.IllegalArgumentException: invalid provider: null

package com.example.jun.artest;import android.Manifest;import android.app.Activity;import android.app.Service;import android.content.Context;import android.content.pm.PackageManager;import android.har...

android-studio

2 years ago

1 answers
102 views
0

Reads text files, organizes them in descending or ascending order, and outputs them back to the file

9 Kim Cheol-soo 72 10 Park Jae-yong 79 1 Na Young-hee 34 3 Lee Nayeon 46 I read the text file (class number, name, grade) in this way and based on the class number,After organizing them in descending ...

java file-io

2 years ago

1 answers
73 views
0

[Android studio] The Alertdialog window is dark.

Here's the current situationJava code is Sagin.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { View dlgView = View.inflate(Activity2.this,ac2_sub,null); ...

android-studio java xml dialog

2 years ago

1 answers
39 views
0

There is an error in the design of the Android studio.

Hello, I'm a beginner at Android Studio. I have a question because there was an error during the installation process.At first, I installed sdk in the English route after I knew that it was not possib...

android-studio

2 years ago

1 answers
162 views
0

How can I display Recycler view in Fragment?

Hello~~ I'm a beginner who just started learning how to make an app..The app I'm planning is composed of several fragments in one MainActivity.I'm stuck in thinking of one of the Fragments, UserFragme...

kotlin recyclerview fragment android android-studio

2 years ago

1 answers
46 views
0

I have a question for beginners Using class statements, we are distributing capabilities as a random function and making characters and monsters to make a game, but I have a question because of the c2659 error

Header file.pragma onceclass character{private: int m_HP; int m_MP; int m_ATK; int m_Def;public: character(); ~character(); void setHP(int m_HP); int hp() { return m_HP; } void setMP(int m_MP); int m...

studio

2 years ago

1 answers
75 views
0

It's a Cotlin question.

class MainActivity : AppCompatActivity() {override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) but1.setOnClickListener(){ var...

kotlin android-studio

2 years ago

1 answers
118 views
0

App runs only on emulator and force shutdown on actual device (Android studio, Java)

This time, I made an app using Android Studio, Java (minimum support version 4.4)But strangely enough, if you turn on the app emulator in the Android studio itself (pixel 2, version Pie), it runs well...

emulator force-quit android-studio java aosp

2 years ago

1 answers
74 views
0

Layout resource file cannot be created due to constraint layout

To create a guideline, I entered android.support.constrain.constrainLayout in the root element and created it, but it appears as shown in the picture above.I looked it up, and they told me to add one ...

android-studio android layout xml

2 years ago

2 answers
47 views
0

[Basic] I have a question about the C language structure pointer.

#include <stdio.h>#include <malloc.h>typedef struct Point2D { int inint; char inchar[10];};void structinput(struct Point2D *p, int su) { int count = 1; for (int i = 0; i < su; i++) { p...

c visual-studio

2 years ago

- 27 -

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