1/* 2 * Copyright (c) 1998, 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/* @test 25 @bug 4071765 26 @summary Bug in the parameter of str.getChars called in write 27*/ 28 29 30 31import java.io.*; 32 33public class WriteFromString { 34 35 36 public static void main(String argv[]) throws Exception { 37 LocalStringWriter lsw = new LocalStringWriter(); 38 boolean result = true; 39 40 String testString = "Testing of what gets written"; 41 // Should write out at offset 2 for length 4 i.e."stin" 42 lsw.write(testString, 1, 4); 43 String res = lsw.toString(); 44 if (!res.equals("esti")) { 45 result = false; 46 System.err.println("Writer.write is incorrect:" + res); 47 } 48 49 // Same bug in stringwriter as well 50 StringWriter sw = new StringWriter(); 51 sw.write(testString, 1, 4); 52 res = sw.toString(); 53 String ss = testString.substring(1,4); 54 System.out.println("Substring = "+ss); 55 if (!res.equals("esti")) { 56 System.err.println("StringWriter.write is incorrect:" + res); 57 result = false; 58 } 59 if (!result) { 60 throw new Exception("Writer.write method is incorrect."); 61 } 62 } 63 64} 65 66/** 67 * A copy of StringWriter to test the write method in Writer 68 */ 69 70class LocalStringWriter extends Writer { 71 72 private StringBuffer buf; 73 74 /** 75 * Create a new string writer, using the default initial string-buffer 76 * size. 77 */ 78 public LocalStringWriter() { 79 buf = new StringBuffer(); 80 lock = buf; 81 } 82 83 /** 84 * Write a portion of an array of characters. 85 * 86 * @param cbuf Array of characters 87 * @param off Offset from which to start writing characters 88 * @param len Number of characters to write 89 */ 90 public void write(char cbuf[], int off, int len) { 91 if ((off < 0) || (off > cbuf.length) || (len < 0) || 92 ((off + len) > cbuf.length) || ((off + len) < 0)) { 93 throw new IndexOutOfBoundsException(); 94 } else if (len == 0) { 95 return; 96 } 97 buf.append(cbuf, off, len); 98 } 99 100 /** 101 * Write a string. 102 */ 103 public void write(String str) { 104 buf.append(str); 105 } 106 107 /** 108 * Return the buffer's current value as a string. 109 */ 110 public String toString() { 111 return buf.toString(); 112 } 113 114 115 public void flush(){ } 116 117 public void close(){ } 118 119} 120