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An instance of a LocalDate object can be obtained from a Temporal object using the from() method in the LocalDate class in Java. This method requires a single parameter i.e. the Temporal object and it returns the LocalDate object that is obtained from the Temporal object.A program that demonstrates this is given as follows −Example Live Demoimport java.time.*; public class Main { public static void main(String[] args) { LocalDate ld = LocalDate.from(ZonedDateTime.now()); System.out.println("The LocalDate is: " + ld); } }OutputThe LocalDate is: 2019-02-16Now let us understand the above program.The instance of the LocalDate ... Read More
For returned record set order, you need to use FIND_IN_SET() function. For an example, let us create a table.mysql> create table returnRecordSetOrderDemo -> ( -> Id int, -> Name varchar(20) -> ); Query OK, 0 rows affected (1.01 sec)Insert some records in the table using insert command.The query is as follows.mysql> insert into returnRecordSetOrderDemo values(100, 'John'); Query OK, 1 row affected (0.13 sec) mysql> insert into returnRecordSetOrderDemo values(130, 'Carol'); Query OK, 1 row affected (0.13 sec) mysql> insert into returnRecordSetOrderDemo values(103, 'Bob'); Query OK, 1 row affected (0.17 sec) mysql> insert into returnRecordSetOrderDemo values(134, 'Sam'); Query OK, ... Read More
In this section, we will see how to convert C++ string (std::string) to const char* or char*. These formats are C style strings. We have a function called c_str(). This will help us to do the task. It returns a pointer to an array that contains a null-terminated sequence of characters (i.e., a C-string) representing the current value of the string object.Following is the declaration for std::string::c_str.const char* c_str() const;This function returns a pointer to an array that contains a null-terminated sequence of characters (i.e., a C-string) representing the current value of the string object. If an exception is thrown, ... Read More
In this section we will see how to convert an integer number to a string.The logic is very simple. Here we will use the sprintf() function. This function is used to print some value or line into a string, but not in the console. This is the only difference between printf() and sprintf(). Here the first argument is the string buffer. where we want to save our data.Input: User will put some numeric value say 42Output: This program will return the string equivalent result of that number like “42”Algorithm:Step 1: Take a number as argument Step 2: Create an empty ... Read More
Before getting into an example, we should know what ConcurrentLinkedQueue is, it is an unbounded queue based on linked nodes. Multiple threads can access queue elements with safety. Elements travel based on queue strategy as FIFO and elements going to insert from a tail. It does not allow null values.This example demonstrates about How to use remove() in android ConcurrentLinkedQueueStep 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. In the above code, ... Read More
Sometimes we need variable number of inputs in our program. In this program we will see how to use cin to take variable number of inputs.The simple solution is run a loop, and when one specific value is pressed, it stops. The another idea is using the cin >> input. This will return false when value is non-numeric.Example#include using namespace std; main() { int input; int n = 0; cout > input) n++; cout
The OF machine cycle are constituted by the four clock cycles shown in the figure below. Here in these four clock cycles we execute opcode fetch, decode, and complete the execution. Moreover, in the instructions of 2- and 3-byte, and also in the instructions of 1 byte like ‘MOV B, M’, only OF and decode operations gets completed in these four cycles of the clock. Hence opcode fetch is consisted by the OF machine cycle and for performing the decode operation, and in some rare cases execution. For performing some typical instructions like DCX B, the six states are provided ... Read More
As you know, order is a keyword in MySQL, you cannot give table name order directly. You need to use backtick around the table name order. Backtick allow a user to consider the keyword as table or column name.The syntax is as followsCREATE TABLE `order` ( yourColumnName1 dataType, yourColumnName2 dataType, yourColumnName3 dataType, . . . . N );Let us create a table. The query to create a table is as followsmysql> create table `order` - > ( - > Id int, - > Price int - > ); ... Read More
A RowSet is a wrapper around a ResultSet Object. It can be connected, disconnected from the database and can be serialized. It maintains a JavaBean component by setting the properties. You can pass a RowSet object over the network. By default, RowSet object is scrollable and updatable and it is used to make a ResultSet object scrollable and updatable.You Can get a RowSet using theRowSetProvider.newFactory().createJdbcRowSet() method.ExampleAssume we have a table named dataset in the database as:+--------------+-----------+ | mobile_brand | unit_sale | +--------------+-----------+ | Iphone | 3000 | | Samsung | 4000 ... Read More
This example demonstrate about How to use simple volley request in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. In the above code, we have taken text view to show response.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v7.app.AppCompatActivity; import android.util.Log; import android.widget.TextView; import android.widget.Toast; import com.android.volley.Request; import com.android.volley.RequestQueue; import com.android.volley.Response; import com.android.volley.VolleyError; import com.android.volley.toolbox.StringRequest; import com.android.volley.toolbox.Volley; public class MainActivity extends AppCompatActivity ... Read More