From e8b96f4474afea669923602daf94d34be170634f Mon Sep 17 00:00:00 2001 From: =?utf8?q?J=C3=A9r=C3=B4me=20Benoit?= Date: Tue, 3 Apr 2018 15:43:09 +0200 Subject: [PATCH] exo3: Add code skeleton. MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Signed-off-by: Jérôme Benoit --- exo3/Entiers.java | 108 ++++++++++++++++++++++++++++++++++++++++++++++ exo3/Main.java | 44 +++++++++++++++++++ exo3/Makefile | 90 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 242 insertions(+) create mode 100644 exo3/Entiers.java create mode 100644 exo3/Main.java create mode 100644 exo3/Makefile diff --git a/exo3/Entiers.java b/exo3/Entiers.java new file mode 100644 index 0000000..61b330f --- /dev/null +++ b/exo3/Entiers.java @@ -0,0 +1,108 @@ + +class Entiers { + private int int_array[]; + private int array_size; + private int current_size; + + public void setSize(int size) { + array_size = size; + } + + public int getSize() { + return array_size; + } + + public void setCurrentSize(int index) { + current_size = index; + } + + public int getCurrentSize() { + return current_size; + } + + Entiers(int size) { + int_array = new int[size]; + setSize(size); + setCurrentSize(0); + } + + public boolean inserer(int value) { + if (isFull()) { + System.out.println("Tableau plein"); + return false; + } + if (isEmpty()) { + int_array[0] = value; + current_size++; + return true; + } else { + for (int i = 0; i < getCurrentSize(); i++) { + if (int_array[i] == value) { + return true; + } else if (int_array[i] > value) { + for (int j = getCurrentSize(); j > i; j--) { + int_array[j] = int_array[j - 1]; + } + int_array[i] = value; + current_size++; + return true; + } + } + } + /** + * The current value to add is > to all elements in the tab. + * So add it at the end. + */ + int_array[getCurrentSize()] = value; + current_size++; + return true; + } + + private int binarySearch(int first, int last, int value) { + if (last < first) + //FIXME: should not return an integer + return -1; + int middle = (first + last) / 2; + if (value == int_array[middle]) + return middle; + else if (value > int_array[middle]) + return binarySearch((middle + 1), last, value); + return binarySearch(first, (middle -1), value); + } + + public boolean supprimer(int value) { + if (isEmpty()) { + System.out.println("Aucune valeur à supprimer"); + return false; + } + + for (int i = 0; i < getCurrentSize(); i++) { + if (int_array[i] == value) { + // Deleting the element in the tab + for (int j = i; j < getCurrentSize() - 1; j++) { + int_array[j] = int_array[j + 1]; + } + current_size--; + return true; + } + } + return true; + } + + private boolean isFull() { + return (getCurrentSize() >= getSize()); + } + + private boolean isEmpty() { + return (getCurrentSize() == 0); + } + + public void afficher() { + String className = this.getClass().getSimpleName(); + System.out.println("---- " + className + " ----"); + for (int i = 0; i < getCurrentSize(); i++) { + System.out.println("element " + i + " " + int_array[i]); + } + } + +} diff --git a/exo3/Main.java b/exo3/Main.java new file mode 100644 index 0000000..41749bf --- /dev/null +++ b/exo3/Main.java @@ -0,0 +1,44 @@ + +class Main { + + private static void main_orig(String[] args) { + Entiers integer = new Entiers(5); + + integer.inserer(1); + + integer.afficher(); + + integer.inserer(12); + + integer.afficher(); + + integer.inserer(3); + + integer.afficher(); + + integer.inserer(0); + + integer.inserer(1); + + integer.afficher(); + + integer.supprimer(12); + + integer.afficher(); + System.out.println("Current size " + integer.getCurrentSize()); + + integer.supprimer(1); + + integer.afficher(); + System.out.println("Current size " + integer.getCurrentSize()); + + } + + /** + * The main() function + * @param String[] args main() function arguments array + */ + public static void main(String[] args) { + main_orig(args); + } +} diff --git a/exo3/Makefile b/exo3/Makefile new file mode 100644 index 0000000..dcfc983 --- /dev/null +++ b/exo3/Makefile @@ -0,0 +1,90 @@ +# define compiler and compiler flag variables +# define a variable for compiler flags (JFLAGS) +# define a variable for the compiler (JC) +# define a variable for the Java Virtual Machine (JVM) + +JFLAGS = -g +JC = javac +JVM = java + +# +# Clear any default targets for building .class files from .java files; we +# will provide our own target entry to do this in this makefile. +# make has a set of default targets for different suffixes (like .c.o) +# Currently, clearing the default for .java.class is not necessary since +# make does not have a definition for this target, but later versions of +# make may, so it doesn't hurt to make sure that we clear any default +# definitions for these +# + +.SUFFIXES: .java .class + + +# +# Here is our target entry for creating .class files from .java files +# This is a target entry that uses the suffix rule syntax: +# DSTS: +# rule +# DSTS (Dependency Suffix Target Suffix) +# 'TS' is the suffix of the target file, 'DS' is the suffix of the dependency +# file, and 'rule' is the rule for building a target +# '$*' is a built-in macro that gets the basename of the current target +# Remember that there must be a < tab > before the command line ('rule') +# + +.java.class: + $(JC) $(JFLAGS) $*.java + + +# +# CLASSES is a macro consisting of N words (one for each java source file) +# When a single line is too long, use \ to split lines that then will be +# considered as a single line. For example: +# NAME = Camilo \ + Juan +# is understood as +# NAME = Camilo Juan + +CLASSES = \ + Entiers.java \ + Main.java + +# +# MAIN is a variable with the name of the file containing the main method +# + +MAIN = Main + +# +# the default make target entry +# for this example it is the target classes + +default: classes + + +# Next line is a target dependency line +# This target entry uses Suffix Replacement within a macro: +# $(macroname:string1=string2) +# In the words in the macro named 'macroname' replace 'string1' with 'string2' +# Below we are replacing the suffix .java of all words in the macro CLASSES +# with the .class suffix +# + +classes: $(CLASSES:.java=.class) + + +# Next two lines contain a target for running the program +# Remember the tab in the second line. +# $(JMV) y $(MAIN) are replaced by their values + +run: $(MAIN).class + $(JVM) $(MAIN) + +# this line is to remove all unneeded files from +# the directory when we are finished executing(saves space) +# and "cleans up" the directory of unneeded .class files +# RM is a predefined macro in make (RM = rm -f) +# + +clean: + $(RM) *.class -- 2.34.1