曜日を取得するメソッド

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//曜日
Calendar c=Calendar.getInstance();
int num = c.get(Calendar.DAY_OF_WEEK);
String youbi = getYoubiText(this, num);

// 数値から曜日を返すメソッド1：日曜-7：土曜
public static String getYoubiText(Context context, int num) {
	String weekday = null;
	Resources res = context.getResources();
	switch (num) {
	case 1:
		weekday = res.getString(R.string.youbi_1);
		break;
	case 2:
		weekday = res.getString(R.string.youbi_2);
		break;
	case 3:
		weekday = res.getString(R.string.youbi_3);
		break;
	case 4:
		weekday = res.getString(R.string.youbi_4);
		break;
	case 5:
		weekday = res.getString(R.string.youbi_5);
		break;
	case 6:
		weekday = res.getString(R.string.youbi_6);
		break;
	case 7:
		weekday = res.getString(R.string.youbi_7);
		break;
	}
	return weekday;
}

[string.xml]

<string name="youbi_1">日</string>
<string name="youbi_2">月</string>
<string name="youbi_3">火</string>
<string name="youbi_4">水</string>
<string name="youbi_5">木</string>
<string name="youbi_6">金</string>
<string name="youbi_7">土</string>