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*
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* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
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* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
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/*
* @ test
* @ bug 4136371 5017980 6576055
* @ summary Test Long . decode method
* @ author madbot
* @ author Joseph D . Darcy
*/
import java.math.BigInteger;
/**
* There are six methods in java . lang . Integer which transform strings
* into a long or Long value :
*
* public Long ( String s )
* public static Long decode ( String nm )
* public static long parseLong ( String s , int radix )
* public static long parseLong ( String s )
* public static Long valueOf ( String s , int radix )
* public static Long valueOf ( String s )
*
* The other five methods are tested elsewhere .
*/
public class Decode {
private static void check(String val, long expected) {
long n = (Long .decode(val)).longValue();
if (n != expected)
throw new RuntimeException("Long.decode failed. String:" +
val + " Result:" + n);
}
private static void checkFailure(String val, String message) {
try {
long n = (Long .decode(val)).longValue();
throw new RuntimeException(message);
} catch (NumberFormatException e) { /* Okay */}
}
public static void main(String[] args) throws Exception {
check(new String("" +Long .MIN_VALUE), Long .MIN_VALUE);
check(new String("" +Long .MAX_VALUE), Long .MAX_VALUE);
check("10" , 10 L);
check("0x10" , 16 L);
check("0X10" , 16 L);
check("010" , 8 L);
check("#10" , 16 L);
check("+10" , 10 L);
check("+0x10" , 16 L);
check("+0X10" , 16 L);
check("+010" , 8 L);
check("+#10" , 16 L);
check("-10" , -10 L);
check("-0x10" , -16 L);
check("-0X10" , -16 L);
check("-010" , -8 L);
check("-#10" , -16 L);
check(Long .toString(Long .MIN_VALUE), Long .MIN_VALUE);
check(Long .toString(Long .MAX_VALUE), Long .MAX_VALUE);
checkFailure("0x-10" , "Long.decode allows negative sign in wrong position." );
checkFailure("0x+10" , "Long.decode allows positive sign in wrong position." );
checkFailure("+" , "Raw plus sign allowed." );
checkFailure("-" , "Raw minus sign allowed." );
checkFailure(BigInteger.valueOf(Long .MIN_VALUE).subtract(BigInteger.ONE).toString(),
"Out of range" );
checkFailure(BigInteger.valueOf(Long .MAX_VALUE).add(BigInteger.ONE).toString(),
"Out of range" );
checkFailure("" , "Empty String" );
try {
Long .decode(null );
throw new RuntimeException("Long.decode(null) expected to throw NPE" );
} catch (NullPointerException npe) {/* Okay */}
}
}
Messung V0.5 in Prozent C=96 H=94 G=94
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-10-12)
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