/*
* Copyright ( c ) 2006 , 2007 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* 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 ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
/*
* @ test
* @ bug 5017980 6576055 8041972 8055251
* @ summary Test parsing methods
* @ author Joseph D . Darcy
*/
import java.lang.IndexOutOfBoundsException;
import java.lang.NullPointerException;
import java.lang.RuntimeException;
/**
* There are seven methods in java . lang . Integer which transform strings
* into an int or Integer value :
*
* public Integer ( String s )
* public static Integer decode ( String nm )
* public static int parseInt ( CharSequence s , int beginIndex , int endIndex , int radix )
* public static int parseInt ( String s , int radix )
* public static int parseInt ( String s )
* public static Integer valueOf ( String s , int radix )
* public static Integer valueOf ( String s )
*
* Besides decode , all the methods and constructor call down into
* parseInt ( CharSequence , int , int , int ) to do the actual work . Therefore , the
* behavior of parseInt ( CharSequence , int , int , int ) will be tested here .
*
*/
public class ParsingTest {
public static void main(String... argv) {
check(+100 , "+100" );
check(-100 , "-100" );
check(0 , "+0" );
check(0 , "-0" );
check(0 , "+00000" );
check(0 , "-00000" );
check(0 , "0" );
check(1 , "1" );
check(9 , "9" );
checkFailure("" );
checkFailure("\u0000" );
checkFailure("\u002f" );
checkFailure("+" );
checkFailure("-" );
checkFailure("++" );
checkFailure("+-" );
checkFailure("-+" );
checkFailure("--" );
checkFailure("++100" );
checkFailure("--100" );
checkFailure("+-6" );
checkFailure("-+6" );
checkFailure("*100" );
// check offset based methods
check(0 , "+00000" , 0 , 6 , 10 );
check(0 , "-00000" , 0 , 6 , 10 );
check(0 , "test-00000" , 4 , 10 , 10 );
check(-12345 , "test-12345" , 4 , 10 , 10 );
check(12345 , "xx12345yy" , 2 , 7 , 10 );
check(15 , "xxFyy" , 2 , 3 , 16 );
checkNumberFormatException("" , 0 , 0 , 10 );
checkNumberFormatException("+-6" , 0 , 3 , 10 );
checkNumberFormatException("1000000" , 7 , 7 , 10 );
checkNumberFormatException("1000000" , 0 , 2 , Character.MAX_RADIX + 1 );
checkNumberFormatException("1000000" , 0 , 2 , Character.MIN_RADIX - 1 );
checkIndexOutOfBoundsException("1000000" , 10 , 4 , 10 );
checkIndexOutOfBoundsException("1000000" , -1 , 2 , Character.MAX_RADIX + 1 );
checkIndexOutOfBoundsException("1000000" , -1 , 2 , Character.MIN_RADIX - 1 );
checkIndexOutOfBoundsException("1000000" , 10 , 2 , Character.MAX_RADIX + 1 );
checkIndexOutOfBoundsException("1000000" , 10 , 2 , Character.MIN_RADIX - 1 );
checkIndexOutOfBoundsException("-1" , 0 , 3 , 10 );
checkIndexOutOfBoundsException("-1" , 2 , 3 , 10 );
checkIndexOutOfBoundsException("-1" , -1 , 2 , 10 );
checkNull(0 , 1 , 10 );
checkNull(-1 , 0 , 10 );
checkNull(0 , 0 , 10 );
checkNull(0 , -1 , 10 );
checkNull(-1 , -1 , -1 );
}
private static void check(int expected, String val) {
int n = Integer.parseInt(val);
if (n != expected)
throw new RuntimeException("Integer.parseInt failed. String:" +
val + " Result:" + n);
}
private static void checkFailure(String val) {
int n = 0 ;
try {
n = Integer.parseInt(val);
System.err.println("parseInt(" + val + ") incorrectly returned " + n);
throw new RuntimeException();
} catch (NumberFormatException nfe) {
; // Expected
}
}
private static void checkNumberFormatException(String val, int start, int end, int radix) {
int n = 0 ;
try {
n = Integer.parseInt(val, start, end, radix);
System.err.println("parseInt(" + val + ", " + start + ", " + end + ", " + radix +
") incorrectly returned " + n);
throw new RuntimeException();
} catch (NumberFormatException nfe) {
; // Expected
}
}
private static void checkIndexOutOfBoundsException(String val, int start, int end, int radix) {
int n = 0 ;
try {
n = Integer.parseInt(val, start, end, radix);
System.err.println("parseInt(" + val + ", " + start + ", " + end + ", " + radix +
") incorrectly returned " + n);
throw new RuntimeException();
} catch (IndexOutOfBoundsException ioob) {
; // Expected
}
}
private static void checkNull(int start, int end, int radix) {
int n = 0 ;
try {
n = Integer.parseInt(null , start, end, radix);
System.err.println("parseInt(null, " + start + ", " + end + ", " + radix +
") incorrectly returned " + n);
throw new RuntimeException();
} catch (NullPointerException npe) {
; // Expected
}
}
private static void check(int expected, String val, int start, int end, int radix) {
int n = Integer.parseInt(val, start, end, radix);
if (n != expected)
throw new RuntimeException("Integer.parsedInt failed. Expected: " + expected + " String: \" " +
val + "\" , start: " + start + " , end: " + end + " , radix: " + radix + " Result:" + n);
}
}
Messung V0.5 in Prozent C=96 H=92 G=93
¤ Dauer der Verarbeitung: 0.19 Sekunden
(vorverarbeitet am 2026-10-11)
¤
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