**Contents**show

## What are simple calculators?

1) A calculator is a device that performs arithmetic operations on numbers. The simplest calculators **can do only addition, subtraction, multiplication, and division**. More sophisticated calculators can handle exponent ial operations, roots, logarithm s, trigonometric functions, and hyperbolic functions.

## What is MC in calculator?

Memory and clear functions for this standard calculator are listed below. mc = **Memory Clear**. m+ = Memory Plus. m- = Memory Minus. mr = Memory Recall.

## What is scanner in Java?

The Java Scanner class is **used to collect user input**. Scanner is part of the java. util package, so it can be imported without downloading any external libraries. Scanner reads text from standard input and returns it to a program.

## How do you calculate formulas in Java?

line 1: int first **=** (1 + 1); line 2: int second = first + 3 * (2 + 5); line 3: line 4: first = 5; line 5: line 6: int third = first + second; line 7: System. out. println(first); line 8: System.

## How do you calculate total in Java?

So you simply make this: **sum=sum+num;** for the cycle. For example sum is 0, then you add 5 and it becomes sum=0+5 , then you add 6 and it becomes sum = 5 + 6 and so on. And it is double because you are using division.

## How do you divide in Java?

Since most keyboards don’t have the times and division symbols you learned in grammar school, **Java uses * to mean multiplication** and / to mean division.