半角を全角に変換

TextToZenkakuTestCase.java

package jp.co.kayo.android.test.util;

import android.test.AndroidTestCase;

public class TextToZenkakuTestCase extends AndroidTestCase {

    private static final String CODES_SRC = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890-=[]\\;',./`~!@#$%^&*()_+{}|:\"<>?ﾞﾟｱｲｳｴｵｶｷｸｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜｦﾝ";
    private static final String CODES_DEST = "ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚＡＢＣＤＥＦＧＨＩＪＫＬＭＮＯＰＱＲＳＴＵＶＷＸＹＺ１２３４５６７８９０－＝［］￥；'，．／｀~！＠＃＄％＾＆＊（）＿＋｛｝｜：”＜＞？゛゜アイウエオカキクケコサシスセソタチツテトナニヌネノハヒフヘホマミムメモヤユヨラリルレロワヲン";

    public static String toZenkaku(String src) {
        StringBuilder result = new StringBuilder();
        char[] srcArray = src.toCharArray();
        char[] destArray = CODES_DEST.toCharArray();
        for (char chr : srcArray) {
            int pos = CODES_SRC.indexOf(chr);
            if (pos == -1) {
                result.append(chr);
                continue;
            }
            result.append(destArray[pos]);
        }

        return result.toString();
    }

    public void testChars() {
        String zenkaku = toZenkaku(CODES_SRC);
        assertTrue(zenkaku.length() > 0);
        for (int i = 0, il = zenkaku.length(); i < il; i++) {
            assertEquals(CODES_DEST.charAt(i), zenkaku.charAt(i));
        }

        String[][] testCases = new String[][] {
//@formatter:off
                { "a", "ａ" },
                { "\\", "￥" },
                { "1", "１" },
                { "あ1い", "あ１い" },
                { "ほげ!", "ほげ！" },
                { "ｱ", "ア" },
                { "ﾝ", "ン" },
                { "ﾎﾟ", "ホ゜" },
//@formatter:on
        };

        for (String[] pattern : testCases) {
            assertEquals(pattern[1], toZenkaku(pattern[0]));
        }
    }

}

半角カタカナ→全角カタカナの対応はいってない！