Technology Questions

new ClassName();

This expression creates object in heap area and returns that obj address. Here JVM creates object but JVM does not returns object original address. JVM returns duplicate address, duplicate address is also called as hashcode. 

- The Dictionary class is an abstract class.

- Classes like Hashtable which map keys to values inherit from this class. 

- An object can be looked for if a dictionary and a key is provided.

- Any non-null object can be used as a key and as a value.

A struct is a special C data type that encapsulates other pieces of data into a single cohesive unit. Like an object, but built into C.

- Class selector can be given to an overall block. This is sometimes termed as block element as well, whereas ID selector identifies a unique name and a style for a specific element. 

- ID selector declares the style for only one particular element which can be differentiated from other element, whereas Class selector is being given for the whole complete block.

In a database table, the category of information is called Field.

For launching an application, we will need to create an intent that explicitly defines the activity that we wish to start. For example:

Code

        Intent intent = new Intent(this, MyTestActivity.class);

        startActivity(intent);

- This can be done by defining the frame with SCROLLING = auto and having content to just fit into this frame. 

- SCROLLING="yes" gets the scroll bar on both the sides, even when not needed. 

- SCROLLING="no" doesn’t get the scrollbars at all, even when they are needed.

It is a single computer in a network reserved for serving the needs of the network.