# How can I add two numbers without using operator in Java?

Contents

## How can I add two numbers without an operator?

1. Using subtraction operator. int add(int a, int b) { …
2. Repeated Addition/Subtraction using –/++ operator. #include
3. Using printf() function. This method makes use of two facts: …
5. Using logarithm and exponential function.

## How do you add two numbers in Java?

Sum of Two Numbers Using Command Line Arguments in Java

1. public class SumOfNumbers4.
2. {
3. public static void main(String args[])
4. {
5. int x = Integer.parseInt(args); //first arguments.
6. int y = Integer.parseInt(args); //second arguments.
7. int sum = x + y;
8. System.out.println(“The sum of x and y is: ” +sum);

## Which operator is used to add two numbers?

Arithmetic Operators

Operator Meaning
Unary −: change the sign of the value
* Multiplication: multiply two values
/ Division: divide one value by another

## How do you read 2 numbers in Java?

Full Code

1. import java. util. Scanner;
2. public class Inputfunctions {
3. public static void main(String[] args) {
4. Scanner readme = new Scanner(System. in);
5. System. out. println(“Enter Two Numbers (Press Enter after each):”);
6. //two variables to hold numbers.
7. double n1, n2, n3;

## How do you divide numbers in Java?

println(Math. round(nr1 / ((double)nr2)*10.0)/10.0); Because when you divide two integers, the answer is always an integer which is always rounder down ((int)2.9 = 2 and (int)3.1 = 3). cast into doubles and then divide in order to get the right answer.

## What is swapping of two numbers?

Swap two numbers means exchange the values of two variables with each other. For example variable num1 contains 20 and num2 contains 40 after swap there values num1 contains 40 and num2 contains 20.

## How do you swap two variables without using third?

Program to swap two numbers without using the third variable

1. STEP 1: START.
2. STEP 2: ENTER x, y.
3. STEP 3: PRINT x, y.
4. STEP 4: x = x + y.
5. STEP 5: y= x – y.
6. STEP 6: x =x – y.
7. STEP 7: PRINT x, y.
8. STEP 8: END.

## How do you swap values in two variables?

Let’s see a simple c example to swap two numbers without using third variable.

1. #include
2. int main()
3. {
4. int a=10, b=20;
5. printf(“Before swap a=%d b=%d”,a,b);
6. a=a+b;//a=30 (10+20)
7. b=a-b;//b=10 (30-20)
8. a=a-b;//a=20 (30-10)

## What is the difference between and == operator?

The ‘==’ operator checks whether the two given operands are equal or not.

What is the difference between = (Assignment) and == (Equal to) operators.

= ==
It is used for assigning the value to a variable. It is used for comparing two values. It returns 1 if both the values are equal otherwise returns 0.

## Is == a logical operator?

Comparison operators — operators that compare values and return true or false . The operators include: > , < , >= , <= , === , and !== ... Logical operators — operators that combine multiple boolean expressions or values and provide a single boolean output. The operators include: && , || , and ! .

## Which operator has the lowest priority?

The operators are listed in order of priority, group 1 having the highest priority and group 7 the lowest. All operators in the same priority group have the same priority. For example, the exponentiation operator ** has the same priority as the prefix + and prefix – operators and the not operator ¬.

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