asdf913’s gists

asdf913 / JapaneseEraJPanel.java

Last active August 6, 2026 05:33

Japanese Era Report

	import java.awt.Dimension;
	import java.awt.GraphicsEnvironment;
	import java.io.IOException;
	import java.io.InputStream;
	import java.lang.reflect.Constructor;
	import java.lang.reflect.Field;
	import java.lang.reflect.InvocationTargetException;
	import java.lang.reflect.Member;
	import java.text.DateFormat;
	import java.text.ParseException;

asdf913 / LocalGregorianCalendarReport.java

Last active August 5, 2026 15:10

LocalGregorianCalendarReport.java

	import java.io.IOException;
	import java.io.InputStream;
	import java.lang.reflect.Proxy;
	import java.util.ArrayList;
	import java.util.Arrays;
	import java.util.Collection;
	import java.util.List;
	import java.util.Objects;
	import java.util.OptionalInt;
	import java.util.function.Predicate;

asdf913 / JapaneseDateWesternDateSpreadSheet24.java

Last active August 4, 2026 05:46

JapaneseDateWesternDateSpreadSheet (Java 24)

	import java.io.File;
	import java.io.FileOutputStream;
	import java.io.IOException;
	import java.io.InputStream;
	import java.io.OutputStream;
	import java.lang.classfile.ClassFile;
	import java.lang.classfile.ClassFileElement;
	import java.lang.classfile.ClassModel;
	import java.lang.classfile.CodeElement;
	import java.lang.classfile.CodeModel;

asdf913 / UpdateVersion.java

Created June 18, 2026 02:57

UpdateVersion - Program to update maven dependency version for a specified pom.xml file

	import java.io.IOException;
	import java.nio.file.Files;
	import java.nio.file.Path;
	import java.util.Arrays;
	import java.util.Collection;
	import java.util.LinkedHashMap;
	import java.util.Map;
	import java.util.Objects;

	import javax.xml.stream.Location;

asdf913 / BiosUtil.java

Last active June 1, 2026 14:35

How to get the BIOS vendor under Linux,MacOSX and Microsoft Windows by Java

	import java.io.File;
	import java.io.IOException;
	import java.io.InputStream;
	import java.nio.charset.StandardCharsets;
	import java.nio.file.FileSystems;
	import java.nio.file.Files;
	import java.util.Collection;
	import java.util.Objects;
	import java.util.regex.Matcher;
	import java.util.regex.Pattern;

asdf913 / XlsxUtil.java

Last active May 18, 2026 01:47

Method to detect a byte array is a valid XLSX data or not

	import java.io.ByteArrayInputStream;
	import java.io.IOException;
	import java.io.InputStream;
	import java.lang.reflect.InvocationTargetException;
	import java.lang.reflect.Member;
	import java.lang.reflect.Method;
	import java.lang.reflect.Modifier;
	import java.util.Base64;
	import java.util.Base64.Decoder;
	import java.util.Objects;

asdf913 / ProcessIdPortMultimap.java

Created May 8, 2026 07:30

Get the mulitmap of Process Id and it opened port number.

	import java.io.IOException;
	import java.io.InputStream;
	import java.nio.charset.StandardCharsets;
	import java.nio.file.FileSystems;
	import java.util.List;
	import java.util.Objects;
	import java.util.regex.Matcher;
	import java.util.regex.Pattern;

	import org.apache.commons.collections4.IterableUtils;

asdf913 / StringArrayToMap.java

Created May 8, 2026 01:12

Convert a String array into a java.util.Map

	import java.util.Arrays;
	import java.util.LinkedHashMap;
	import java.util.Map;
	import java.util.Objects;

	import org.apache.commons.lang3.ArrayUtils;
	import org.apache.commons.lang3.ObjectUtils;
	import org.apache.commons.lang3.StringUtils;

	public class StringArrayToMap {

asdf913 / InetSocketAddressCheckPort.class

Created May 7, 2026 12:59

Retrieve the allowed minimum and maximum port number defined in "checkPort()" in "java.net.InetSocketAddress" class

	import java.io.IOException;
	import java.io.InputStream;
	import java.lang.reflect.Field;
	import java.net.InetSocketAddress;
	import java.util.Arrays;

	import org.apache.bcel.classfile.ClassParser;
	import org.apache.bcel.classfile.ConstantPool;
	import org.apache.bcel.classfile.FieldOrMethod;
	import org.apache.bcel.classfile.JavaClass;

asdf913 / WhichOrWhere.java

Last active May 7, 2026 10:15

Use "which" or "where" to determine if a command is valid. Also print the path of the corresponding executable of the command. Print the actual path if the path is a link

	import java.io.File;
	import java.io.IOException;
	import java.io.InputStream;
	import java.nio.charset.StandardCharsets;
	import java.nio.file.FileSystems;
	import java.util.Objects;
	import java.util.function.Predicate;

	import org.apache.commons.io.IOUtils;
	import org.apache.commons.lang3.StringUtils;