Write a java program that emulates a simple calculator: prompts the user to input the left operand and read it into a double variable. prompts the user to input the right operand and read it into a double variable. display a menu which gives the user the choice of the following menu options: 1 -> multiplication 2 -> division 3 -> addition 4 -> subtraction and uses a user validation loop to read their response into a string variable. note: you must repeatedly get the users response until it is exactly one of the characters 1 2 3 4 compute the result of the arithmetic expression, based on the operands and operator provided, and display the entire expression with its result.

Today is the anniversary of me being on yet, i don't need it anymore! here's a picture of my dog wearing a bowtie! my question is, how do i delete my account?

Creating "smart interfaces" in all sectors of industry, government, and the public arena is one of the fastest growing hct areas. these interfaces model, interpret, and analyze such human characteristics as speech, gesture, and vision. the field of biometrics, in which humans authenticate themselves to machines, is an area of considerable interest to hct practitioners. fingerprint scans are one of the most frequently used biometric options, and this article, biometric student identification: practical solutions for accountability & security in schools, makes a case for the implementation of fingerprint scans in schools. critique the article, and answer the following questions: according to the author, what are the main benefits of adopting fingerprint scans in schools for student identification? according to the author, what are the main drawbacks of adopting fingerprint scans in schools for student identification? do you agree with the author's assessment of the pl

1. for which of the following are you not required to signal beforehand? a. changing lanes b. speeding up c. stopping