Create ObjectOutputStream out of FileOutputStream
/* * Copyright (c) 1995 - 2008 Sun Microsystems, Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of Sun Microsystems nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */import java.io.FileOutputStream; import java.io.ObjectOutputStream; import java.io.Serializable; publicclass CardWriter { publicstaticvoid main(String[] args) { Card3 card = new Card3(12, Card3.SPADES); System.out.println("Card to write is: " + card); try { FileOutputStream out = new FileOutputStream("card.out"); ObjectOutputStream oos = new ObjectOutputStream(out); oos.writeObject(card); oos.flush(); } catch (Exception e) { System.out.println("Problem serializing: " + e); } } } /* * Copyright (c) 1995 - 2008 Sun Microsystems, Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. - Redistributions in binary * form must reproduce the above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or other materials provided * with the distribution. - Neither the name of Sun Microsystems nor the names * of its contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */class Card3 implements Serializable { privateint suit = UNASSIGNED; privateint number = UNASSIGNED; publicfinalstaticint UNASSIGNED = -1; publicfinalstaticint DIAMONDS = 1; publicfinalstaticint CLUBS = 2; publicfinalstaticint HEARTS = 3; publicfinalstaticint SPADES = 4; publicfinalstaticint ACE = 1; publicfinalstaticint KING = 13; public Card3(int number, int suit) { if (isValidNumber(number)) { this.number = number; } else { // Error } if (isValidSuit(suit)) { this.suit = suit; } else { // Error } } publicint getSuit() { return suit; } publicint getNumber() { return number; } publicstaticboolean isValidNumber(int number) { if (number >= ACE && number <= KING) { return true; } else { return false; } } publicstaticboolean isValidSuit(int suit) { if (suit >= DIAMONDS && suit <= SPADES) { return true; } else { return false; } } publicboolean equals(Object obj) { if (obj instanceof Card3) { Card3 card = (Card3) obj; if (card.getNumber() == this.number && card.getSuit() == this.suit) { return true; } else { return false; } } else { return false; } } publicint hashCode() { return number * suit; } public String toString() { return numberToString(this.number) + " of " + suitToString(this.suit); } publicstatic String numberToString(int number) { String result = ""; switch (number) { case ACE: result = "Ace"; break; case 2: result = "Two"; break; case 3: result = "Three"; break; case 4: result = "Four"; break; case 5: result = "Five"; break; case 6: result = "Six"; break; case 7: result = "Seven"; break; case 8: result = "Eight"; break; case 9: result = "Nine"; break; case 10: result = "Ten"; break; case 11: result = "Jack"; break; case 12: result = "Queen"; break; case KING: result = "King"; break; case UNASSIGNED: result = "Invalid Number"; break; } return result; } publicstatic String suitToString(int suit) { String result = ""; switch (suit) { case DIAMONDS: result = "Diamonds"; break; case CLUBS: result = "Clubs"; break; case HEARTS: result = "Hearts"; break; case SPADES: result = "Spades"; break; case UNASSIGNED: result = "Invalid Suit"; break; } return result; } } Related examples in the same category
