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## Can you add longs in Java?

The **sum()** method of Java Long class is used to add two long values according to the ‘+’ operator.

## Can you add long to int java?

Yes, **you can add a long and an int just fine**, and you’ll end up with a long . The int undergoes a widening primitive conversion, as described in the Java Language Specification, specifically JLS8, §5.1. 2 .

## What is 10L in Java?

When you type “return 10L” it means that you are **telling the compiler that the value want returned is a long integer (32-bit)** as opposed to int (16-bit).

## What is long in Java example?

The long (primitive type) and Long class:

The long is a **numeric data type** in Java. … The long type takes 64 bits of memory. The maximum value that a long type variable can store is 9,223,372,036,854,775,807L. The minimum value is -9,223,372,036,854,775,808L.

## Can Java long be negative?

The reason why Java doesn’t throw an exception and you receive negative numbers has **to do with the way numbers are stored**. For a long primitive the first byte is used for indicating the sign of the number (0 -> positive, 1 -> negative), while the rest are used for the numeric value. This means that Long.

## How do you describe a long addition?

**Long addition is a process for adding numbers together.**

- Stack your numbers and align the columns by place value.
- Add all numbers column by column from right to left.
- Record the sum in the answer space for each column.

## How do you add 2 numbers together?

Add multiple numbers by **placing them in vertical columns, then writing the resulting sums vertically beneath the line**. For example, to add 4357 to 3212 involves adding 4 thousand to 3 thousand (7,000), 3 hundred to 2 hundred (500), 5 tens to 1 ten (60), and 7 ones to 2 ones (9).

## How do you compare two long values in java?

**equals()** is a built-in function in java that compares this object to the specified object. The result is true if and only if the argument is not null and is a Long object that contains the same long value as this object. It returns false if both the objects are not same.

## Can an int be a long?

Since **int is smaller data type than long**, it can be converted to long with a simple assignment. This is known as implicit type casting or type promotion, compiler automatically converts smaller data type to larger data type.

## What is the difference between float and double in 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.

## Which is bigger double or long Java?

3 Answers. If you are storing integers, **use Long** . Your statement that “Advantage of Using Double is that it gives a more wider range for storing Whole Numbers” is incorrect. Both are 64 bits long, but double has to use some bits for the exponent, leaving fewer bits to represent the magnitude.

## How long is represented in Java?

The long contains minimum value of -2^{63} and a maximum value of 2^{63}-1. Its default value is 0L. Its default size **is 8 byte**. It is used when you need a higher range integer value.