diff options
Diffstat (limited to 'Java-Kompendium/kap15')
| -rw-r--r-- | Java-Kompendium/kap15/build.gradle | 25 | ||||
| -rw-r--r-- | Java-Kompendium/kap15/gradle/wrapper/gradle-wrapper.jar | bin | 0 -> 45457 bytes | |||
| -rw-r--r-- | Java-Kompendium/kap15/gradle/wrapper/gradle-wrapper.properties | 7 | ||||
| -rwxr-xr-x | Java-Kompendium/kap15/gradlew | 248 | ||||
| -rw-r--r-- | Java-Kompendium/kap15/gradlew.bat | 93 | ||||
| -rw-r--r-- | Java-Kompendium/kap15/src/main/java/Mark.java | 36 | ||||
| -rw-r--r-- | Java-Kompendium/kap15/src/main/java/Marks.java | 127 | ||||
| -rw-r--r-- | Java-Kompendium/kap15/src/main/java/SaveAction.java | 50 | ||||
| -rw-r--r-- | Java-Kompendium/kap15/src/main/java/SearchAction.java | 44 |
9 files changed, 630 insertions, 0 deletions
diff --git a/Java-Kompendium/kap15/build.gradle b/Java-Kompendium/kap15/build.gradle new file mode 100644 index 0000000..eac925f --- /dev/null +++ b/Java-Kompendium/kap15/build.gradle @@ -0,0 +1,25 @@ +plugins { + id 'application' + id 'org.openjfx.javafxplugin' version '0.1.0' +} + +repositories { + mavenCentral() +} + +javafx { + version = "21" + modules = ['javafx.controls'] +} + +dependencies { + runtimeOnly 'org.hsqldb:hsqldb:2.7.4' +} + +run { + standardInput = System.in +} + +application { + mainClass = 'Marks' +} diff --git a/Java-Kompendium/kap15/gradle/wrapper/gradle-wrapper.jar b/Java-Kompendium/kap15/gradle/wrapper/gradle-wrapper.jar Binary files differnew file mode 100644 index 0000000..8bdaf60 --- /dev/null +++ b/Java-Kompendium/kap15/gradle/wrapper/gradle-wrapper.jar diff --git a/Java-Kompendium/kap15/gradle/wrapper/gradle-wrapper.properties b/Java-Kompendium/kap15/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 0000000..2e11132 --- /dev/null +++ b/Java-Kompendium/kap15/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,7 @@ +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-bin.zip +networkTimeout=10000 +validateDistributionUrl=true +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists diff --git a/Java-Kompendium/kap15/gradlew b/Java-Kompendium/kap15/gradlew new file mode 100755 index 0000000..adff685 --- /dev/null +++ b/Java-Kompendium/kap15/gradlew @@ -0,0 +1,248 @@ +#!/bin/sh + +# +# Copyright © 2015 the original authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# https://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# +# SPDX-License-Identifier: Apache-2.0 +# + +############################################################################## +# +# Gradle start up script for POSIX generated by Gradle. +# +# Important for running: +# +# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is +# noncompliant, but you have some other compliant shell such as ksh or +# bash, then to run this script, type that shell name before the whole +# command line, like: +# +# ksh Gradle +# +# Busybox and similar reduced shells will NOT work, because this script +# requires all of these POSIX shell features: +# * functions; +# * expansions «$var», «${var}», «${var:-default}», «${var+SET}», +# «${var#prefix}», «${var%suffix}», and «$( cmd )»; +# * compound commands having a testable exit status, especially «case»; +# * various built-in commands including «command», «set», and «ulimit». +# +# Important for patching: +# +# (2) This script targets any POSIX shell, so it avoids extensions provided +# by Bash, Ksh, etc; in particular arrays are avoided. +# +# The "traditional" practice of packing multiple parameters into a +# space-separated string is a well documented source of bugs and security +# problems, so this is (mostly) avoided, by progressively accumulating +# options in "$@", and eventually passing that to Java. +# +# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, +# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; +# see the in-line comments for details. +# +# There are tweaks for specific operating systems such as AIX, CygWin, +# Darwin, MinGW, and NonStop. +# +# (3) This script is generated from the Groovy template +# https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt +# within the Gradle project. +# +# You can find Gradle at https://github.com/gradle/gradle/. +# +############################################################################## + +# Attempt to set APP_HOME + +# Resolve links: $0 may be a link +app_path=$0 + +# Need this for daisy-chained symlinks. +while + APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path + [ -h "$app_path" ] +do + ls=$( ls -ld "$app_path" ) + link=${ls#*' -> '} + case $link in #( + /*) app_path=$link ;; #( + *) app_path=$APP_HOME$link ;; + esac +done + +# This is normally unused +# shellcheck disable=SC2034 +APP_BASE_NAME=${0##*/} +# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036) +APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD=maximum + +warn () { + echo "$*" +} >&2 + +die () { + echo + echo "$*" + echo + exit 1 +} >&2 + +# OS specific support (must be 'true' or 'false'). +cygwin=false +msys=false +darwin=false +nonstop=false +case "$( uname )" in #( + CYGWIN* ) cygwin=true ;; #( + Darwin* ) darwin=true ;; #( + MSYS* | MINGW* ) msys=true ;; #( + NONSTOP* ) nonstop=true ;; +esac + + + +# Determine the Java command to use to start the JVM. +if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD=$JAVA_HOME/jre/sh/java + else + JAVACMD=$JAVA_HOME/bin/java + fi + if [ ! -x "$JAVACMD" ] ; then + die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +else + JAVACMD=java + if ! command -v java >/dev/null 2>&1 + then + die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +fi + +# Increase the maximum file descriptors if we can. +if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then + case $MAX_FD in #( + max*) + # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked. + # shellcheck disable=SC2039,SC3045 + MAX_FD=$( ulimit -H -n ) || + warn "Could not query maximum file descriptor limit" + esac + case $MAX_FD in #( + '' | soft) :;; #( + *) + # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked. + # shellcheck disable=SC2039,SC3045 + ulimit -n "$MAX_FD" || + warn "Could not set maximum file descriptor limit to $MAX_FD" + esac +fi + +# Collect all arguments for the java command, stacking in reverse order: +# * args from the command line +# * the main class name +# * -classpath +# * -D...appname settings +# * --module-path (only if needed) +# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. + +# For Cygwin or MSYS, switch paths to Windows format before running java +if "$cygwin" || "$msys" ; then + APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) + + JAVACMD=$( cygpath --unix "$JAVACMD" ) + + # Now convert the arguments - kludge to limit ourselves to /bin/sh + for arg do + if + case $arg in #( + -*) false ;; # don't mess with options #( + /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath + [ -e "$t" ] ;; #( + *) false ;; + esac + then + arg=$( cygpath --path --ignore --mixed "$arg" ) + fi + # Roll the args list around exactly as many times as the number of + # args, so each arg winds up back in the position where it started, but + # possibly modified. + # + # NB: a `for` loop captures its iteration list before it begins, so + # changing the positional parameters here affects neither the number of + # iterations, nor the values presented in `arg`. + shift # remove old arg + set -- "$@" "$arg" # push replacement arg + done +fi + + +# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' + +# Collect all arguments for the java command: +# * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments, +# and any embedded shellness will be escaped. +# * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be +# treated as '${Hostname}' itself on the command line. + +set -- \ + "-Dorg.gradle.appname=$APP_BASE_NAME" \ + -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \ + "$@" + +# Stop when "xargs" is not available. +if ! command -v xargs >/dev/null 2>&1 +then + die "xargs is not available" +fi + +# Use "xargs" to parse quoted args. +# +# With -n1 it outputs one arg per line, with the quotes and backslashes removed. +# +# In Bash we could simply go: +# +# readarray ARGS < <( xargs -n1 <<<"$var" ) && +# set -- "${ARGS[@]}" "$@" +# +# but POSIX shell has neither arrays nor command substitution, so instead we +# post-process each arg (as a line of input to sed) to backslash-escape any +# character that might be a shell metacharacter, then use eval to reverse +# that process (while maintaining the separation between arguments), and wrap +# the whole thing up as a single "set" statement. +# +# This will of course break if any of these variables contains a newline or +# an unmatched quote. +# + +eval "set -- $( + printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | + xargs -n1 | + sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | + tr '\n' ' ' + )" '"$@"' + +exec "$JAVACMD" "$@" diff --git a/Java-Kompendium/kap15/gradlew.bat b/Java-Kompendium/kap15/gradlew.bat new file mode 100644 index 0000000..e509b2d --- /dev/null +++ b/Java-Kompendium/kap15/gradlew.bat @@ -0,0 +1,93 @@ +@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/Java-Kompendium/kap15/src/main/java/Mark.java b/Java-Kompendium/kap15/src/main/java/Mark.java new file mode 100644 index 0000000..d5bf856 --- /dev/null +++ b/Java-Kompendium/kap15/src/main/java/Mark.java @@ -0,0 +1,36 @@ +import javafx.beans.property.StringProperty; +import javafx.beans.property.IntegerProperty; +import javafx.beans.property.SimpleIntegerProperty; +import javafx.beans.property.SimpleStringProperty; + +public class Mark { + private StringProperty subject; + private IntegerProperty mark; + + public Mark(String subject, Integer mark) { + subjectProperty().set(subject); + markProperty().set(mark); + } + + public StringProperty subjectProperty() { + if (this.subject == null) { + this.subject = new SimpleStringProperty(this, "subject"); + } + return this.subject; + } + + public IntegerProperty markProperty() { + if (this.mark == null) { + this.mark = new SimpleIntegerProperty(this, "mark"); + } + return this.mark; + } + + public String getSubject() { + return this.subjectProperty().get(); + } + + public Integer getMark() { + return this.markProperty().get(); + } +} diff --git a/Java-Kompendium/kap15/src/main/java/Marks.java b/Java-Kompendium/kap15/src/main/java/Marks.java new file mode 100644 index 0000000..6ec6c06 --- /dev/null +++ b/Java-Kompendium/kap15/src/main/java/Marks.java @@ -0,0 +1,127 @@ +import javafx.application.Application; +import javafx.geometry.Pos; +import javafx.scene.Scene; +import javafx.scene.control.Button; +import javafx.scene.control.Label; +import javafx.scene.control.Separator; +import javafx.scene.control.TableColumn; +import javafx.scene.control.TableView; +import javafx.scene.control.TextField; +import javafx.scene.control.cell.PropertyValueFactory; +import javafx.scene.layout.GridPane; +import javafx.scene.text.Text; +import javafx.stage.Stage; +import java.sql.*; + +public class Marks extends Application { + private GridPane grid; + private Text status; + private Connection connection; + + @Override + public void start(Stage stage) { + this.grid = new GridPane(); + this.createStatus(); + this.createTable(); + this.createForm(); + this.createSearch(); + + this.grid.setVgap(5); + this.grid.setHgap(5); + this.grid.setAlignment(Pos.CENTER); + + var scene = new Scene(this.grid, 500, 400); + + stage.setScene(scene); + stage.setTitle("Noten von Schülern"); + stage.show(); + } + + private void createStatus() { + this.status = new Text(); + + this.grid.add(this.status, 0, 0, 2, 1); + } + + private void createSearch() { + var field = new TextField(); + var button = new Button("Suchen"); + var line = new Separator(); + var table = new TableView<Mark>(); + + try { + var handler = new SearchAction(this.connection, this.status, field); + table.setItems(handler.getMarks()); + + var subjectColumn = new TableColumn<Mark, String>("Fach"); + subjectColumn.setCellValueFactory( + new PropertyValueFactory<>("subject" /* handler.getMarks().get(0).subjectProperty().getName() */) + ); + + var markColumn = new TableColumn<Mark, Integer>("Note"); + markColumn.setCellValueFactory( + new PropertyValueFactory<>("mark" /* handler.getMarks().get(0).markProperty().getName() */) + ); + table.getColumns().setAll(subjectColumn, markColumn); + + button.setOnAction(handler); + } catch (SQLException exception) { + this.status.setText(exception.getMessage()); + } + line.setMinSize(10, 10); + + this.grid.add(line, 0, 6, 2, 1); + this.grid.add(button, 0, 7); + this.grid.add(field, 1, 7); + this.grid.add(table, 0, 8, 2, 1); + } + + private void createForm() { + var nameField = new TextField(); + var nameLabel = new Label("Name"); + var englishField = new TextField(); + var englishLabel = new Label("Englisch"); + var germanField = new TextField(); + var germanLabel = new Label("Deutsch"); + var mathField = new TextField(); + var mathLabel = new Label("Mathematik"); + var saveButton = new Button("Speichern"); + + try { + var action = new SaveAction(this.connection, nameField, englishField, germanField, mathField, this.status); + saveButton.setOnAction(action); + } catch (SQLException exception) { + this.status.setText(exception.getMessage()); + } + + this.grid.add(nameLabel, 0, 1); + this.grid.add(nameField, 1, 1); + this.grid.add(englishLabel, 0, 2); + this.grid.add(englishField, 1, 2); + this.grid.add(germanLabel, 0, 3); + this.grid.add(germanField, 1, 3); + this.grid.add(mathLabel, 0, 4); + this.grid.add(mathField, 1, 4); + this.grid.add(saveButton, 1, 5); + } + + private void createTable() { + try { + var host = "jdbc:hsqldb:mem:mitarbeiter;shutdown=true"; + this.connection = DriverManager.getConnection(host); + var statement = connection.createStatement(); + + statement.executeUpdate(""" + CREATE TABLE IF NOT EXISTS marks ( + mark_id identity PRIMARY KEY, + name VARCHAR, + english integer, + german integer, + math integer + ) + """); + } catch (SQLException exception) { + this.status.setText(exception.getMessage()); + } + } +} diff --git a/Java-Kompendium/kap15/src/main/java/SaveAction.java b/Java-Kompendium/kap15/src/main/java/SaveAction.java new file mode 100644 index 0000000..a1c0e9b --- /dev/null +++ b/Java-Kompendium/kap15/src/main/java/SaveAction.java @@ -0,0 +1,50 @@ +import javafx.event.EventHandler; +import javafx.event.ActionEvent; +import javafx.scene.control.TextField; +import javafx.scene.text.Text; +import java.sql.*; + +public class SaveAction implements EventHandler<ActionEvent> { + private TextField name; + private TextField english; + private TextField german; + private TextField math; + private Text status; + private PreparedStatement statement; + + public SaveAction( + Connection connection, + TextField name, + TextField english, + TextField german, + TextField math, + Text status + ) throws SQLException { + this.statement = connection.prepareStatement( + "INSERT INTO marks (name, english, german, math) VALUES (?, ?, ?, ?)" + ); + this.name = name; + this.english = english; + this.german = german; + this.math = math; + this.status = status; + } + + public void handle(ActionEvent event) { + try { + this.statement.setString(1, this.name.getText()); + this.statement.setInt(2, Integer.parseInt(this.english.getText())); + this.statement.setInt(3, Integer.parseInt(this.german.getText())); + this.statement.setInt(4, Integer.parseInt(this.math.getText())); + + this.statement.execute(); + + this.name.setText(""); + this.english.setText(""); + this.german.setText(""); + this.math.setText(""); + } catch (SQLException exception) { + this.status.setText(exception.getMessage()); + } + } +} diff --git a/Java-Kompendium/kap15/src/main/java/SearchAction.java b/Java-Kompendium/kap15/src/main/java/SearchAction.java new file mode 100644 index 0000000..45aa84f --- /dev/null +++ b/Java-Kompendium/kap15/src/main/java/SearchAction.java @@ -0,0 +1,44 @@ +import javafx.collections.ObservableList; +import javafx.event.ActionEvent; +import javafx.event.EventHandler; +import javafx.scene.control.TextField; +import javafx.scene.text.Text; +import java.sql.*; +import javafx.collections.FXCollections; + +public class SearchAction implements EventHandler<ActionEvent> { + private Text status; + private TextField field; + private PreparedStatement statement; + private ObservableList<Mark> marks = FXCollections.observableArrayList(); + + public SearchAction(Connection connection, Text status, TextField field) throws SQLException { + this.statement = connection.prepareStatement( + "SELECT english, german, math FROM marks WHERE name LIKE ?" + ); + this.status = status; + this.field = field; + } + + public void handle(ActionEvent action) { + try { + this.statement.setString(1, this.field.getText()); + this.statement.execute(); + + var results = this.statement.getResultSet(); + + this.marks.clear(); + if (results.next()) { + this.marks.add(new Mark("Englisch", results.getInt(1))); + this.marks.add(new Mark("Deutsch", results.getInt(2))); + this.marks.add(new Mark("Mathematik", results.getInt(3))); + } + } catch (Exception exception) { + this.status.setText(exception.getMessage()); + } + } + + public ObservableList<Mark> getMarks() { + return this.marks; + } +} |