How Is Instantiation Different from Initialization of a Java Variable?

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Question
Variables in Java store data (e.g., a string or number). How is instantiation of a variable different from initialization, or are they the same?

Answer
Instantiation is different from initialization. Instantiation is the creation of the variable (e.g., through the Java syntax or invocation of a method that creates the variable). A class can be instantiated or a primitive variable can be instantiated.

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How Do You Record a Greeting on a Phone That Gives You Privacy?

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Problem scenario
You must record an audible greeting for a voicemail. You do not want to use your voice. What should you do?

Solution
1. Go to this website: https://wideo.co/text-to-speech/.

2. Enter this text (but substitute 212-123-4567 with your phone number:

Hello, you have reached 2,1,2,1,2,3,4,5,6,7. No one is available to take your call,

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Should You Notify the Sender of Receiving an Unintended Email?

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Problem scenario
You received an email that you should not have. The footer requests you let the sender know and delete the copy you received. What should you do?

Solution
We think you should not examine the contents closely, delete the email and let the sender know. There may be a disclaimer boilerplate in the email that may or may not have legal weight.

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How Do You Remove a 3M Hook from a Wall without Removing the Paint?

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Problem scenario
You affixed some 3M tape to a wall. You want to remove it without damaging the surface it is attached to. What do you do?

Solution
With 3M tape (double sided tape to hold or affix a sensor), remember to pull it straight down parallel to the wall (rather than pulling it away from the wall). If this tape stretches enough,

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What is the Definition of a Security insofar as the Securities and Exchange Commission is Concerned?

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Problem scenario
You want to know if a security should be registered with the SEC based on the Securities Act. When is an asset considered to be a security?

Solution
It depends on if it is an investment contract. The 1946 lawsuit of SEC v. W.J. Howey Co., 328 US 293 provides guidance or a test. https://supreme.justia.com/cases/federal/us/328/293/

The four criteria for a scheme or asset for the “Howey Test” are as follows:

  1. An investment of money
  2. In a common enterprise
  3. With the expectation of profit
  4. To be derived from the efforts of others

(The four points were taken from https://www.investopedia.com/terms/h/howey-test.asp;

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How Do You Sign Out or Log Off a Website?

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Problem scenario
You are logged into an account. You click “sign out” and nothing happens or you cannot find the link/option for signing out or logging off. What should you do?

Possible Solution
Replace “acme.com” with the domain name of the site you are suing, then try one of these:

https://acme.com?signout
https://acme.com?logout
https://acme.com?logoff

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How Do You Troubleshoot “timed out waiting for condition” when Running kubectl Commands?

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Problem scenario
You ran a kubectl command, but you got an error “timed out waiting for condition”. It never worked or suddenly stopped working. What should you do?

Possible Solution #1
Use the -v=9 flag. This will maximize the verbosity of the kubectl command’s results.

Possible Solution #2
See why the pod is not being created if it uses a Persistent Volume Claim.

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Why Is Your Cryptocurrency Selling for a Lower Price?

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Problem scenario
You see the US Dollar rate of a cryptocurrency that is much lower than you thought it would be. You have found on www.coinmarketcap.com and www.coingecko.com an expected rate. The exchange you use does not have fees. You want to convert a cryptocurrency into a different coin. But the value/rate is discrepant with other sources. Why is there an error in the rate for the exchange website you use?

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