## How do you convert a number to a double in java?

**Let’s see the simple code to convert int to Double in java.**

- public class IntToDoubleExample2{
- public static void main(String args[]){
- int i=100;
**Double**d= new**Double**(i);//first way.**Double**d2=**Double**.valueOf(i);//second way.- System.out.println(d);
- System.out.println(d2);
- }}

## How do you convert long to bytes?

**Convert Long Values into Byte Using Explicit Casting in Java**

- Syntax: byte varName; // Default value 0.
- Values: 1 byte (8 bits) : -128 to 127.
- long: The long data type is a 64-bit two’s complement integer.
- Syntax: long varName; // Default value 0.
- Values: 8 byte (64 bits): -9223372036854775808 to 9223372036854775807.

## Can we convert long to float in java?

Conversion of an int or a long value to float, or of a long value to double, may result in loss of precision-that is, the result may lose some of the least significant bits of the value.

## Can we add int and double in java?

In Java, integer addition and double addition **use different hardware**. … The computer wants to either add two int values or two double values. Java’s solution (as in many other languages) is type promotion.

## Can we convert String to double in java?

We can convert String to double in java using **Double.** **parseDouble() method**.

## Which is bigger double or long Java?

Another way of saying this is that long has just under 19 digits precision, while **double** has only 16 digits precision. Double can store numbers larger than 16 digits, but at the cost of truncation/rounding in the low-order digits.

## What is long max value in Java?

The data type: Java long. Long is last primitive type related to int, it is stored in 64 bits of memory, which means it can store more values than integer, stores values from (-2^{63}) to (2^{63}-1). So the Java long max values are **-9,223,372,036,854,775,807 and 9,223,372,036,854,775,808**.

## What is the difference between float and double Java?

Double takes more space but more precise during computation and **float takes less space** but less precise. According to the IEEE standards, float is a 32 bit representation of a real number while double is a 64 bit representation. In Java programs we normally mostly see the use of double data type.

## How do you convert long to float?

**Convert long to float in Java**

- long vIn = -9223372036854775808L;
- float vOut = (float)vIn;

## Can we add float and double in Java?

A float can have precision up to around 5 or 6 float point numbers, and a double can have precision up to around 10 floating point numbers. Basically… a double can store a decimal better than a float … but takes up more space. To answer your question, **you can add a float to a double** and vice versa.

## Can you divide a double by an int C++?

The result of **dividing a double** by a **double** is a **double**. However, **if** both expressions have type **int**, then the result is an **int**. PROGRAM 1 In Java, when **you do** a division between two **integers**, the result is an **integer**. … This is an **int** plus a **double**, so **C++** converts the **int** to a **double**, and the result is a **double**.

## Can we add int and float in Python?

Integers and floating-point numbers can be mixed in arithmetic. **Python 3 automatically converts integers to floats as needed**.