asdf913’s gists

asdf913 / JptExamMarkSheetExcel.java

Last active March 20, 2025 12:29

JPT Exam Mark Sheet (xlsx)

	import java.io.File;
	import java.io.FileOutputStream;
	import java.io.IOException;
	import java.io.OutputStream;
	import java.util.Arrays;
	import java.util.Collection;
	import java.util.List;
	import java.util.Objects;

	import org.apache.commons.lang3.StringUtils;

asdf913 / ChopImage.java

Created February 13, 2025 12:03

Chop Image by Java

	import java.awt.image.BufferedImage;
	import java.io.ByteArrayInputStream;
	import java.io.File;
	import java.io.IOException;
	import java.io.InputStream;
	import java.nio.file.Files;
	import java.util.Base64;
	import java.util.Base64.Decoder;
	import java.util.Collection;
	import java.util.function.ObjIntConsumer;

asdf913 / Main.java

Last active February 11, 2025 06:33

Check if string is plain text or not

	import java.lang.reflect.Field;
	import java.util.Arrays;
	import java.util.List;
	import java.util.Objects;
	import java.util.function.Predicate;

	import org.apache.commons.collections4.IterableUtils;
	import org.apache.commons.lang3.ArrayUtils;
	import org.apache.commons.lang3.StringUtils;
	import org.apache.commons.lang3.function.FailableFunction;

asdf913 / JlptAdverbList.java

Created February 2, 2025 09:56

Extract all Japanese adverb from https://jlptsensei.com/complete-japanese-adverbs-list/ and write the list to a XLSX spreadsheet. Each sheet represent the JLPT examination level

	import java.io.File;
	import java.io.FileOutputStream;
	import java.io.IOException;
	import java.io.OutputStream;
	import java.net.MalformedURLException;
	import java.net.URI;
	import java.net.URISyntaxException;
	import java.util.Collection;
	import java.util.function.Function;
	import java.util.function.Predicate;

asdf913 / Main.java

Created January 20, 2025 14:23

Print the "java.awt.datatransfer.DataFlavor" constants which are "java.awt.datatransfer.DataFlavor". Also list the result of "java.awt.datatransfer.Transferable.isDataFlavorSupported(java.awt.datatransfer.DataFlavor)" against all "java.awt.datatransfer.DataFlavor" constants which are "java.awt.datatransfer.DataFlavor"

	import java.awt.GraphicsEnvironment;
	import java.awt.Toolkit;
	import java.awt.datatransfer.Clipboard;
	import java.awt.datatransfer.DataFlavor;
	import java.awt.datatransfer.Transferable;
	import java.lang.reflect.Field;
	import java.lang.reflect.Member;
	import java.lang.reflect.Modifier;
	import java.lang.reflect.Proxy;
	import java.util.Arrays;

asdf913 / PDImageXObjectTest

Last active January 18, 2025 15:07

List of allowed "org.apache.pdfbox.util.filetypedetector.FileType" and test if a given file is accepted by "org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject.createFromByteArray(org.apache.pdfbox.pdmodel.PDDocument,byte[],java.lang.String)" method

	import java.io.File;
	import java.io.IOException;
	import java.io.InputStream;
	import java.lang.reflect.Field;
	import java.lang.reflect.InvocationTargetException;
	import java.lang.reflect.Member;
	import java.lang.reflect.Method;
	import java.lang.reflect.Proxy;
	import java.nio.file.Files;
	import java.util.ArrayList;

asdf913 / gist:65aa2113e4e596ed6f96f5bcbfbd1240

Created June 22, 2024 05:46

Convert all java file under all sub folder encoding from UTF-8 to CP932

 find . -name "*.java" -type f -exec readlink -f {} \;|xargs -I {} iconv -f UTF-8 -t CP932 {}>{}

asdf913 / gist:11c083e2bc321c7aeb1499cf69b94751

Created June 6, 2024 07:10

https://docs.groovy-lang.org/latest/html/gapi/org/apache/groovy/util/Maps.html

	org.apache.groovy.util.Maps.of(K, V)
	org.apache.groovy.util.Maps.of(K, V, K, V)
	org.apache.groovy.util.Maps.of(K, V, K, V, K, V)
	...
	up to 100 key value pairs

	https://docs.groovy-lang.org/latest/html/gapi/org/apache/groovy/util/Maps.html

asdf913 / JapaneseDateWesternDateSpreadSheet.java

Created April 17, 2024 22:55

	import java.io.File;
	import java.io.FileOutputStream;
	import java.io.IOException;
	import java.io.InputStream;
	import java.io.OutputStream;
	import java.text.SimpleDateFormat;
	import java.time.chrono.JapaneseEra;
	import java.util.ArrayList;
	import java.util.Arrays;
	import java.util.Calendar;

asdf913 / TodofukenAndShiKuChoSonCode.java

Created April 16, 2024 01:30

	import java.io.File;
	import java.io.IOException;
	import java.io.InputStream;
	import java.net.URL;
	import java.nio.charset.StandardCharsets;
	import java.util.Collection;
	import java.util.List;
	import java.util.function.Predicate;
	import java.util.regex.Matcher;
	import java.util.regex.Pattern;