1 /* 2 * Copyright (c) 2006, 2007, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 5017980 6576055 27 * @summary Test parsing methods 28 * @author Joseph D. Darcy 29 */ 30 31 32 /** 33 * There are six methods in java.lang.Integer which transform strings 34 * into an int or Integer value: 35 * 36 * public Integer(String s) 37 * public static Integer decode(String nm) 38 * public static int parseInt(String s, int radix) 39 * public static int parseInt(String s) 40 * public static Integer valueOf(String s, int radix) 41 * public static Integer valueOf(String s) 42 * 43 * Besides decode, all the methods and constructor call down into 44 * parseInt(String, int) to do the actual work. Therefore, the 45 * behavior of parseInt(String, int) will be tested here. 46 */ 47 48 public class ParsingTest { 49 public static void main(String... argv) { 50 check("+100", +100); 51 check("-100", -100); 52 53 check("+0", 0); 54 check("-0", 0); 55 check("+00000", 0); 56 check("-00000", 0); 57 58 check("0", 0); 59 check("1", 1); 60 check("9", 9); 61 62 checkFailure("\u0000"); 63 checkFailure("\u002f"); 64 checkFailure("+"); 65 checkFailure("-"); 66 checkFailure("++"); 67 checkFailure("+-"); 68 checkFailure("-+"); 69 checkFailure("--"); 70 checkFailure("++100"); 71 checkFailure("--100"); 72 checkFailure("+-6"); 73 checkFailure("-+6"); 74 checkFailure("*100"); 75 } 76 77 private static void check(String val, int expected) { 78 int n = Integer.parseInt(val); 79 if (n != expected) 80 throw new RuntimeException("Integer.parsedInt failed. String:" + 81 val + " Result:" + n); 82 } 83 84 private static void checkFailure(String val) { 85 int n = 0; 86 try { 87 n = Integer.parseInt(val); 88 System.err.println("parseInt(" + val + ") incorrectly returned " + n); 89 throw new RuntimeException(); 90 } catch (NumberFormatException nfe) { 91 ; // Expected 92 } 93 } 94 }