DecimalFormat is a concrete subclass of NumberFormat that formats decimal numbers.Let us set DecimalFormat("00E00") first.Format f = new DecimalFormat("00E00");Now, we will format a number and display the result in a string using the format() method −String res = f.format(-5977.3427);Since, we have used both Format and DecimalFormat class in Java, therefore ... Read More

You can use a dynamic query for this. First set the variable name for username and variable name for a password. The syntax is as follows −SET @anyVariableName=’yourUserName’; SET @anyVariableName1=’yourpassword’;Now you can use the CONCAT() function from MySQL. The syntax is as follows −SET @yourQueryName = CONCAT ('    CREATE ... Read More

DecimalFormat is a concrete subclass of NumberFormat that formats decimal numbers. Let us set DecimalFormat("0000000000E0") first.Format f = new DecimalFormat("0000000000E0");Now, we will format a number and display the result in a string using the format() method −String res = f.format(-97579.9146);Since, we have used both Format and DecimalFormat class in Java, ... Read More

The “s” format for seconds is like representing 1, 2, 3, 4 seconds, etc. We will use it like this.SimpleDateFormat("s");Let us see an example −// displaying seconds in s format simpleformat = new SimpleDateFormat("s"); String strSeconds = simpleformat.format(new Date()); System.out.println("Seconds in s format = "+strSeconds);Above, we have used the SimpleDateFormat ... Read More

To find invalid email address, use the below syntax −SELECT yourColumnName FROM yourTableName WHERE yourColumnName NOT LIKE '%_@_%._%';The above syntax will give the list of all invalid email addresses. To understand the above syntax, let us create a table. The query to create a table is as follows −mysql> create ... Read More

Python provides various libraries to handle geographical and graph data. Python plotly is one of those libraries which are used to draw geographical graphs. Plotly is a free and open source library. Plotly helps to plot various kinds of graphs like Line charts, Horizontal bar charts, bar charts, dashboards, scatter ... Read More

To extract the Day/Month/Year from a timestamp, you need to use the date_parse() function. The syntax as follows −print_r(date_parse(“anyTimeStampValue”));The PHP code is as follows −$yourTimeStampValue="2019-02-04 12:56:50"; print_r(date_parse($yourTimeStampValue));The snapshot of PHP code is as follows −The following is the output −Array ( [year] => 2019 [month] => 2 [day] => 4 ... Read More

The z format means General Time Zone. We will use it like this.SimpleDateFormat("z");Let us see an example −// displaying timezone in z format SimpleDateFormat simpleformat = new SimpleDateFormat("z"); String strTimeZone = simpleformat.format(new Date()); System.out.println("TimeZone in z format = "+strTimeZone);Above, we have used the SimpleDateFormat class, therefore the following package is ... Read More

To format year in yy format is like displaying year as 01, 02, 03, 04, etc. For example, 18 for 2018.Use the yy format like this.SimpleDateFormat("yy");Let us see an example −// year in yy format SimpleDateFormat simpleformat = new SimpleDateFormat("yy"); String strYear = simpleformat.format(new Date()); System.out.println("Current Year = "+strYear);Above, we ... Read More

To drop a database with the character ‘?’ in its name, you need to use backtick symbol around the database name. The syntax is as follows −DROP DATABASE `yourDatabaseName`;To understand the above syntax, let us create a database. The query to create a database is as follows −mysql> create database ... Read More