Blog: mkyong (Yong Mook Kim) |
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357 blogs
updated: 41 min. ago
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Some Java Conferences and Events 2019. 1. JAX London (October 7-10, 2019) JAX London is a four-day conference for cutting edge software engi...
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In Java, we can use Timestamp.valueOf(LocalDa teTime) to convert a LocalDateTime into a Timestamp. 1. LocalDateTime Timestamp Java example t...
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Many examples are using the .count() as the terminal operation for .peek(), for example: Java 8 List l = Arrays.asList("A", "B", "C", "D"); ...
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To uninstall Oracle database on Windows, we have to delete the all the related Ora* registry keys, files and folders manually. P.S Tested wi...
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This is caused by the requested SID doesn't exist in {ORACLE_HOME}/network/adm in/tnsnames.ora P.S Tested with Oracle database 19c with ojdb...
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A JDBC CallableStatement example to show you how to call a stored function from PostgreSQL database. P.S Tested with PostgreSQL 11 and Java ...
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Since Java 1.6, JDBC 4.0 API, it provides a new feature to discover java.sql.Driver automatically, it means the Class.forName is no longer r...
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A JDBC example to connect to a PostgreSQL, and print out all the tables from the default database postgres pom.xml org.postgresql postgresql...
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If Java 8, DateTimeFormatter, else SimpleDateFormat to change the date format in a String. 1. DateTimeFormatter (Java 8) Convert the String ...
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Only Streams whose source are an IO channel like Files.lines(Path, Charset) need to be closed. Read this Stream JavaDocs Streams have a Base...
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