// Declares String reference variable str1 and str2 String str1; String str2; // Assigns the reference of a String object "Hello" to str1 str1 = new String( "Hello World !!" ); // Assigns the reference stored in str1 to str2 str2 = str1; System.out.println( str1 ); //Hel...
An exception occurs because the Database is known as an SQL Exception. An exception that provides information about the database is also known as SQL Exception. We have an SQLException class in Java, which is used to provide information about the exception.It has the following methods: 1. ge...
An atomic operation is executed in one single machine-level operation. To understand the problem this solves, let’s look at the following Counter class: public class Counter { private int counter = 0; public void incrementCounter() { counter += 1; } public int getCounter() { return count...
This will record the click count by incrementing the currentClickCount and then send a broadcast of the updated currentClickCount using pusher to all listeners of the clickEvent on the clickChannel. And lastly in the main() function, we expose the express server to listen on port 9999. Now ...