Java

Simple Icons contributors / Simple Icons — CC0 1.0

Working notes on Java: Anonymous run, Charset, Conversions, Current directory, Custom sort, and Download, and related topics.

Working notes on Java: Anonymous run, Charset, Conversions, Current directory, Custom sort, and Download, and related topics.

Topics

• Anonymous run — Stuff here.
• Charset — Byte[] b = string.getBytes(Charset.forName("UTF-8"));.
• Conversions — New String(byteArray, "ISO-8859-1").
• Current directory — System.out.println("* "+System.getProperty("user.dir"));.
• Custom sort — @Override public int compare(HockeyPlayer p1, HockeyPlayer p2) {.
• Download — Package ..;.
• Execution — No standard location.
• External JAr location — Jre/lib/ext.
• File — Final String UTF8_BOM = "\uFEFF";.
• Integer > String — Preferred.
• Java — Process p = Runtime.getRuntime().exec("cmd /c dir");.
• Java Properties file — Imports java.io.FileInputStream;.
• Name Value pair — HttpPost request = new HttpPost();.
• Pass by — (unlike C++ where references are just another ‘name’ for the same variable).
• Random — Imports java.util.Random;.
• Remote debugging — No spaces in the runjdwp option.
• Servlet — Request.getContentLength() or.
• String conversions — String conversions: to Hex string, byteArray to String, String.getByte(“<encoding:UTF-8>”), and byteArray to String new String(<byteArray> [, <enc.