本文整理匯總了Java中java.lang.Character.digit方法的典型用法代碼示例。如果您正苦於以下問題：Java Character.digit方法的具體用法？Java Character.digit怎麽用？Java Character.digit使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類java.lang.Character的用法示例。
在下文中一共展示了Character.digit方法的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: readUnicodeChar
import java.lang.Character; //導入方法依賴的package包/類
static private int readUnicodeChar(PushbackReader r, int initch, int base, int length, boolean exact) {
int uc = Character.digit(initch, base);
if(uc == -1)
throw new IllegalArgumentException("Invalid digit: " + (char) initch);
int i = 1;
for(; i < length; ++i)
{
int ch = read1(r);
if(ch == -1 || isWhitespace(ch) || isMacro(ch))
{
unread(r, ch);
break;
}
int d = Character.digit(ch, base);
if(d == -1)
throw new IllegalArgumentException("Invalid digit: " + (char) ch);
uc = uc * base + d;
}
if(i != length && exact)
throw new IllegalArgumentException("Invalid character length: " + i + ", should be: " + length);
return uc;
}
示例2: nibble2Int
import java.lang.Character; //導入方法依賴的package包/類
public static int nibble2Int(byte nibble) {
final char[] hexBytes = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
int out = -1;
for (final char ch : hexBytes) {
char nibble_ch = (char) nibble;
nibble_ch = Character.toUpperCase(nibble_ch);
if (nibble_ch == ch) {
out = Character.digit(nibble,16);
break;
}
}
if (out < 0) {
System.out.println(String.format("nibble is: %c", nibble));
out = -1;
}
return out;
}
示例3: invoke
import java.lang.Character; //導入方法依賴的package包/類
public Object invoke(Object reader, Object doublequote, Object opts, Object pendingForms) {
StringBuilder sb = new StringBuilder();
Reader r = (Reader) reader;
for(int ch = read1(r); ch != '"'; ch = read1(r))
{
if(ch == -1)
throw Util.runtimeException("EOF while reading string");
if(ch == '\\') //escape
{
ch = read1(r);
if(ch == -1)
throw Util.runtimeException("EOF while reading string");
switch(ch)
{
case 't':
ch = '\t';
break;
case 'r':
ch = '\r';
break;
case 'n':
ch = '\n';
break;
case '\\':
break;
case '"':
break;
case 'b':
ch = '\b';
break;
case 'f':
ch = '\f';
break;
case 'u':
{
ch = read1(r);
if (Character.digit(ch, 16) == -1)
throw Util.runtimeException("Invalid unicode escape: \\u" + (char) ch);
ch = readUnicodeChar((PushbackReader) r, ch, 16, 4, true);
break;
}
default:
{
if(Character.isDigit(ch))
{
ch = readUnicodeChar((PushbackReader) r, ch, 8, 3, false);
if(ch > 0377)
throw Util.runtimeException("Octal escape sequence must be in range [0, 377].");
}
else
throw Util.runtimeException("Unsupported escape character: \\" + (char) ch);
}
}
}
sb.append((char) ch);
}
return sb.toString();
}