Answer:- Major property of a good hash code is that objects which are equal should return the same hash code .
Explanation: Hash codes is a numeric value which is used for identify a object while a equality testing .Hash code can occupy the value of any length and then returns a fixed length value. The value of hash codes are variable.
If two objects are equal then by the method of equal(object) if the hashcode() function is called on both the objects , they produce the same value.
Answer:
RJ-11 connector.
Explanation:
RJ-11 (Registered Jack-11) also known as the phone line or modem port is a network cable having twisted wire pairs and a modular jack with two, four or six contacts. It is generally used with telephones and modem.
Hence, the other connector type that can be used with CAT 3 installations is the RJ-11 connector.
Answer:
A window notifying that: Found New Hardware Wizard
Explanation:
As soon as any device is plugged into the USB port, the default settings will display a window onto the screen which will notify about the addition of a new hardware to the system. This window can further be used to know the properties of the hardware or for configuration settings.
This process is same like the software part, that whenever a new application is installed onto the system a pop up notification alerts about its presence.
So when the scanner will be attached through USB port a window will be appeared notifying about the discovery of new hardware.
Answer:
Option a, b, d, f, and j is legal method calls.
Explanation:
In the given question some information is missing, that is the method definition which can be described as follows:
Method definition:
int x =2, y=3; //defining integer variable
int mathMethod (int x) //method definition
{//method body
int z=x+y; //calculate value
return z; //return value
}
In the given question option a, b, d, f, and j is legal, because these options follow the correct syntax, and other option were incorrect which can be defined as follows:
- In option c, It is illegal because it accepts only one parameter.
- In option e, It is accepts long number, that's why it is illegal.
- In option g, It accepts float value, that's why it is illegal.
- In option h, It doesn't accepts any parameter.
- In option i, It isn't use in method.
