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Android - Event callback ```java package exam.Input; import android.app.*; import android.content.*; import android.os.*; import android.view.*; import android.widget.*; //* 1.핸들러 메소드 재정의 - 상속을 받아야만 재정의 가능하다. public class HandleEvent extends Activity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); View vw = new MyView(this); setContentView(vw); } protected class MyView extends Vie.. 2019. 7. 17.
Android - Beep ```java package exam.Output; import android.app.*; import android.content.*; import android.media.*; import android.os.*; import android.view.*; import android.widget.*; import exam.AndroidExam.*; public class MessageBeep extends Activity { Beeper DingDong; Beeper Ddock; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.output_messagebe.. 2019. 7. 17.
Android - Toast ```java package exam.Output; import android.app.*; import android.os.*; import android.view.*; import android.widget.*; import exam.AndroidExam.*; public class ToastTest extends Activity { Toast mToast = null; int count; String str; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.output_toasttest); findViewById(R.id.shortmsg).setOnCli.. 2019. 7. 17.
d3js - enter(), update() and exit() d3js - enter(), update() and exit() ##### [source : https://jsfiddle.net/softm/ourf2exL/ ](https://jsfiddle.net/softm/ourf2exL/) 참고 : http://bl.ocks.org/alansmithy/e984477a741bc56db5a5 ```css ``` ```javascript //2 different data arrays var dataArray1 = [30,35,45,55,70]; var dataArray2 = [50,55,45,35,20,25,25,40]; //globals var dataIndex=1; var xBuffer=50; var yBuffer=150; var lineLength=400; //c.. 2019. 7. 16.
Android - xml resource to view inflate ```java package exam.Layout; import android.app.*; import android.graphics.*; import android.os.*; import android.view.*; import android.widget.*; import exam.AndroidExam.*; public class Inflation4 extends Activity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); LinearLayout linear = new LinearLayout(this); linear.setOrientation(LinearLayout.VERTICAL); lin.. 2019. 7. 16.
java for double[] ar = {1.2, 3.0, 0.8}; int sum = 0; for (double d : ar) { // d gets successively each value in ar. sum += d; } And here is the same loop using the basic for. It requires an extra iteration variable. double[] ar = {1.2, 3.0, 0.8}; int sum = 0; for (int i = 0; i < ar.length; i++) { // i indexes each element successively. sum += ar[i]; } 2019. 7. 16.

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