Immutable String in Java

Sai Nath
Updated on 30-Jul-2019 22:30:21

749 Views

In Java immutable objects are those whose data can’t be changed or modified (once modified). String class is immutable i.e. once we create a String object its data cannot be modified.

Create User Accounts in MySQL Database Server

Ankitha Reddy
Updated on 30-Jul-2019 22:30:21

306 Views

As we know that, MySQL database server is having the user table in MySQL database which is used to store the user accounts so by using MySQL database we can create user accounts in MySQL database server. There must be two things while creating the new user account, one is the username and other is the hostname which is after @ character. The syntax for creating the user account is as follows − Syntax Use mysql; CREATE USER user_account IDENTIFIED BY password; Here user_account is the name of the user we wish to take account of. It can ... Read More

Set All Border-Left Properties in One Declaration with JavaScript

Sai Subramanyam
Updated on 30-Jul-2019 22:30:21

109 Views

To set all the border left properties in a single declaration, use the borderLeft property. You can try to run the following code to learn how to set the border left properties − Example Live Demo #box { border: thick solid gray; width: 300px; height: 200px } Demo Text Change left border function display() { document.getElementById("box").style.borderLeft = "thick solid #000000"; }

Delete All Rows from a MySQL Table

George John
Updated on 30-Jul-2019 22:30:21

1K+ Views

We can use either TRUNCATE statement or DROP statement to delete all the rows from the table. It can also be done with the help of DELETE statement but in that case WHERE clause must identify all the rows of the table. As we know that both TRUNCATE and DELETE statement will not delete the structure of the table but still it is better to use TRUNCATE statement rather than DELETE statement. DROP statement will delete table’s structure also. Syntax TRUNCATE statement TRUNCATE table table_name: Syntax DROP statement DROP table table_name:

History of C++ Language

Fendadis John
Updated on 30-Jul-2019 22:30:21

3K+ Views

The C++ programming language has a history going back to 1979, when Bjarne Stroustrup was doing work for his Ph.D. thesis. He began work on "C with Classes", which as the name implies was meant to be a superset of the C language. His goal was to add object-oriented programming into the C language, which was and still is a language well-respected for its portability without sacrificing speed or low-level functionality.His language included classes, basic inheritance, inlining, default function arguments, and strong type checking in addition to all the features of the C language. The first C with Classes compiler ... Read More

Native Methods in Java and Their Usage

Prabhas
Updated on 30-Jul-2019 22:30:21

491 Views

Native methods are written in a different language than java and are declared as native in Java.

What are C++ Tokens?

Nishtha Thakur
Updated on 30-Jul-2019 22:30:21

2K+ Views

A token is the smallest element of a C++ program that is meaningful to the compiler. The C++ parser recognizes these kinds of tokens: identifiers, keywords, literals, operators, punctuators, and other separators. A stream of these tokens makes up a translation unit. Tokens are usually separated by white space.The parser recognizes keywords, identifiers, literals, operators, and punctuators. Preprocessing tokens(like #include, #define, #if_def, etc.) are used in the preprocessing phases to generate the token stream passed to the compiler. The preprocessing token categories are header names, identifiers, preprocessing numbers, character literals, string literals, etc. that do not match one of the ... Read More

What Happens When MySQL AUTO_INCREMENT Reaches Upper Limit?

vanithasree
Updated on 30-Jul-2019 22:30:21

784 Views

When the AUTO_INCREMENT column reaches the upper limit of data type then the subsequent effort to generate the sequence number fails. That is why it is advised to use a large enough integer data type for the AUTO_INCREMENT column to hold the maximum sequence value required by us. For example, if we will use TINYINT then AUTO_INCREMENT would be able to generate only 127 sequence numbers and in case of UNSIGNED TINYINT, this value can be extended up to 255.

Search an Octal Number Character with JavaScript RegExp

Ankitha Reddy
Updated on 30-Jul-2019 22:30:21

299 Views

To find an octal number character with JavaScript Regular Expression, use the following. Add the octal number here − \xxx You can try to run the following code to find an octal number character. It searches for octal number 123 i.e S − Example Live Demo JavaScript Regular Expression var myStr = "Secure and Responsive!"; var reg = /\123/g; var match = myStr.match(reg); document.write(match); Output S

Using TCP/IP Ports for Accessing SAP HANA Database

SAP Expert
Updated on 30-Jul-2019 22:30:21

850 Views

To access HANA system on client tools, you need to open different ports to database for these clients. These ports refer to different servers and application service in HANA system.

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