JAVA-1749 Move modules language interop and console
This commit is contained in:
mikr
5
core-java-modules/core-java-console/README.md
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5
core-java-modules/core-java-console/README.md
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#Core Java Console
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[Read and Write User Input in Java](http://www.baeldung.com/java-console-input-output)
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[Formatting with printf() in Java](https://www.baeldung.com/java-printstream-printf)
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[ASCII Art in Java](http://www.baeldung.com/ascii-art-in-java)
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142
core-java-modules/core-java-console/pom.xml
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142
core-java-modules/core-java-console/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<project
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xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<artifactId>core-java-console</artifactId>
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<version>0.1.0-SNAPSHOT</version>
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<name>core-java-console</name>
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<packaging>jar</packaging>
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<parent>
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<groupId>com.baeldung.core-java-modules</groupId>
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<artifactId>core-java-modules</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<relativePath>../</relativePath>
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</parent>
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<build>
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<finalName>core-java-console</finalName>
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<resources>
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<resource>
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<directory>src/main/resources</directory>
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<filtering>true</filtering>
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</resource>
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</resources>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-dependency-plugin</artifactId>
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<executions>
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<execution>
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<id>copy-dependencies</id>
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<phase>prepare-package</phase>
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<goals>
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<goal>copy-dependencies</goal>
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</goals>
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<configuration>
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<outputDirectory>${project.build.directory}/libs</outputDirectory>
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</configuration>
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</execution>
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</executions>
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</plugin>
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<plugin>
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<groupId>org.codehaus.mojo</groupId>
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<artifactId>exec-maven-plugin</artifactId>
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<version>${exec-maven-plugin.version}</version>
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<configuration>
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<executable>java</executable>
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<mainClass>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</mainClass>
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<arguments>
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<argument>-Xmx300m</argument>
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<argument>-XX:+UseParallelGC</argument>
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<argument>-classpath</argument>
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<classpath />
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<argument>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</argument>
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</arguments>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-javadoc-plugin</artifactId>
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<version>${maven-javadoc-plugin.version}</version>
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<configuration>
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<source>${source.version}</source>
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<target>${target.version}</target>
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</configuration>
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</plugin>
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</plugins>
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</build>
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<profiles>
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<profile>
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<id>integration</id>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-surefire-plugin</artifactId>
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<executions>
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<execution>
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<phase>integration-test</phase>
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<goals>
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<goal>test</goal>
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</goals>
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<configuration>
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<excludes>
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<exclude>**/*ManualTest.java</exclude>
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</excludes>
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<includes>
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<include>**/*IntegrationTest.java</include>
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<include>**/*IntTest.java</include>
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</includes>
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</configuration>
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</execution>
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</executions>
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<configuration>
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<systemPropertyVariables>
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<test.mime>json</test.mime>
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</systemPropertyVariables>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.codehaus.mojo</groupId>
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<artifactId>exec-maven-plugin</artifactId>
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<version>${exec-maven-plugin.version}</version>
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<executions>
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<execution>
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<id>run-benchmarks</id>
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<!-- <phase>integration-test</phase> -->
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<phase>none</phase>
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<goals>
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<goal>exec</goal>
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</goals>
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<configuration>
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<classpathScope>test</classpathScope>
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<executable>java</executable>
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<arguments>
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<argument>-classpath</argument>
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<classpath />
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<argument>org.openjdk.jmh.Main</argument>
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<argument>.*</argument>
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</arguments>
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</configuration>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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</profile>
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</profiles>
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<properties>
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<maven-javadoc-plugin.version>3.0.0-M1</maven-javadoc-plugin.version>
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<exec-maven-plugin.version>1.6.0</exec-maven-plugin.version>
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<source.version>1.8</source.version>
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<target.version>1.8</target.version>
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</properties>
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</project>
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package com.baeldung.asciiart;
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import java.awt.Font;
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import java.awt.Graphics;
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import java.awt.Graphics2D;
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import java.awt.RenderingHints;
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import java.awt.image.BufferedImage;
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public class AsciiArt {
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public AsciiArt() {
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}
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public void drawString(String text, String artChar, Settings settings) {
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BufferedImage image = getImageIntegerMode(settings.width, settings.height);
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Graphics2D graphics2D = getGraphics2D(image.getGraphics(), settings);
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graphics2D.drawString(text, 6, ((int) (settings.height * 0.67)));
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for (int y = 0; y < settings.height; y++) {
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StringBuilder stringBuilder = new StringBuilder();
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for (int x = 0; x < settings.width; x++) {
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stringBuilder.append(image.getRGB(x, y) == -16777216 ? " " : artChar);
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}
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if (stringBuilder.toString()
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.trim()
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.isEmpty()) {
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continue;
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}
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System.out.println(stringBuilder);
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}
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}
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private BufferedImage getImageIntegerMode(int width, int height) {
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return new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
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}
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private Graphics2D getGraphics2D(Graphics graphics, Settings settings) {
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graphics.setFont(settings.font);
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Graphics2D graphics2D = (Graphics2D) graphics;
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graphics2D.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
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return graphics2D;
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}
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public class Settings {
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public Font font;
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public int width;
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public int height;
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public Settings(Font font, int width, int height) {
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this.font = font;
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this.width = width;
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this.height = height;
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}
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}
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}
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@@ -0,0 +1,26 @@
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package com.baeldung.console;
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import java.io.Console;
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public class ConsoleConsoleClass {
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public static void main(String[] args) {
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Console console = System.console();
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if (console == null) {
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System.out.print("No console available");
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return;
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}
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String progLanguauge = console.readLine("Enter your favourite programming language: ");
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console.printf(progLanguauge + " is very interesting!");
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char[] pass = console.readPassword("To finish, enter password: ");
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if ("BAELDUNG".equals(pass.toString().toUpperCase()))
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console.printf("Good! Regards!");
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else
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console.printf("Nice try. Regards.");
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}
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}
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@@ -0,0 +1,76 @@
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package com.baeldung.console;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.util.Scanner;
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import java.util.regex.Pattern;
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public class ConsoleScannerClass {
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public static void main(String[] args) {
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System.out.println("Please enter your name and surname: ");
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Scanner scanner = new Scanner(System.in);
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String nameSurname = scanner.nextLine();
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System.out.println("Please enter your gender: ");
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char gender = scanner.next().charAt(0);
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System.out.println("Please enter your age: ");
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int age = scanner.nextInt();
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System.out.println("Please enter your height in meters: ");
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double height = scanner.nextDouble();
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System.out.println(nameSurname + ", " + age + ", is a great " + (gender == 'm' ? "guy" : "girl") + " with " + height + " meters height" + " and " + (gender == 'm' ? "he" : "she") + " reads Baeldung.");
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System.out.print("Have a good");
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System.out.print(" one!");
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System.out.println("\nPlease enter number of years of experience as a developer: ");
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BufferedReader buffReader = new BufferedReader(new InputStreamReader(System.in));
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int i = 0;
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try {
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i = Integer.parseInt(buffReader.readLine());
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} catch (NumberFormatException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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} catch (IOException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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System.out.println("You are a " + (i > 5 ? "great" : "good") + " developer!");
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int sum = 0, count = 0;
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System.out.println("Please enter your college degrees. To finish, enter baeldung website url");
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while (scanner.hasNextInt()) {
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int nmbr = scanner.nextInt();
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sum += nmbr;
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count++;
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}
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int mean = sum / count;
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System.out.println("Your average degree is " + mean);
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if (scanner.hasNext(Pattern.compile("www.baeldung.com")))
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System.out.println("Correct!");
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else
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System.out.println("Baeldung website url is www.baeldung.com");
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if (scanner != null)
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scanner.close();
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}
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}
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package com.baeldung.printf;
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import java.util.Date;
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import java.util.Locale;
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public class PrintfExamples {
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public static void main(String[] args) {
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printfNewLine();
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printfChar();
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printfString();
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printfNumber();
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printfDateTime();
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printfBoolean();
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}
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private static void printfNewLine() {
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System.out.printf("baeldung%nline%nterminator");
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}
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private static void printfString() {
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System.out.printf("'%s' %n", "baeldung");
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System.out.printf("'%S' %n", "baeldung");
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System.out.printf("'%15s' %n", "baeldung");
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System.out.printf("'%-10s' %n", "baeldung");
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}
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private static void printfChar() {
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System.out.printf("%c%n", 's');
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System.out.printf("%C%n", 's');
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}
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private static void printfNumber() {
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System.out.printf("simple integer: %d%n", 10000L);
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System.out.printf(Locale.US, "%,d %n", 10000);
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System.out.printf(Locale.ITALY, "%,d %n", 10000);
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System.out.printf("%f%n", 5.1473);
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System.out.printf("'%5.2f'%n", 5.1473);
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System.out.printf("'%5.2e'%n", 5.1473);
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}
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private static void printfBoolean() {
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System.out.printf("%b%n", null);
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System.out.printf("%B%n", false);
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System.out.printf("%B%n", 5.3);
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System.out.printf("%b%n", "random text");
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}
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private static void printfDateTime() {
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Date date = new Date();
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System.out.printf("%tT%n", date);
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System.out.printf("hours %tH: minutes %tM: seconds %tS%n", date, date, date);
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System.out.printf("%1$tH:%1$tM:%1$tS %1$tp %1$tL %1$tN %1$tz %n", date);
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System.out.printf("%1$tA %1$tB %1$tY %n", date);
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System.out.printf("%1$td.%1$tm.%1$ty %n", date);
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}
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}
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@@ -0,0 +1,21 @@
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package com.baeldung.asciiart;
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import com.baeldung.asciiart.AsciiArt.Settings;
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import org.junit.Test;
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import java.awt.*;
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public class AsciiArtIntegrationTest {
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@Test
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public void givenTextWithAsciiCharacterAndSettings_shouldPrintAsciiArt() {
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AsciiArt asciiArt = new AsciiArt();
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String text = "BAELDUNG";
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Settings settings = asciiArt.new Settings(new Font("SansSerif", Font.BOLD, 24), text.length() * 30, 30); // 30 pixel width per character
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asciiArt.drawString(text, "*", settings);
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throw new NullPointerException();
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}
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}
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