What is the difference between int char float & double data types?

int: As the name suggests, an int variable is used to store an integer. float: It is used to store decimal numbers (numbers with floating point value) with single precision. double: It is used to store decimal numbers (numbers with floating point value) with double precision.

What are the differences between the int and double data types?

The main difference between int and double is that int is used to store 32 bit two’s complement integer while double is used to store 64 bit double precision floating point value. The int and double are two main primitive data types. Usually, int allocates 4 bytes for data whereas double allocates 8 bytes for data.

What is the difference between char and double?

The char is just another integer (one byte) with a range of 0 to 255 or -128 to 127 (yes, it can also be signed or unsigned and signed is the default). And, finally, double, stores real numbers. Those with a decimal point. The range is much greater but the precision is limited.

What is the difference between char and float data type?

Character data type allows a variable to store only one character. Storage size of character data type is 1. Float data type allows a variable to store decimal values. Storage size of float data type is 4.

What is difference between float and int?

Integers and floats are two different kinds of numerical data. An integer (more commonly called an int) is a number without a decimal point. A float is a floating-point number, which means it is a number that has a decimal place. Floats are used when more precision is needed.

What is the difference between float and double data type in C?

While float has 32 bit precision for floating number (8 bits for the exponent, and 23* for the value), i.e. float has 7 decimal digits of precision. As double has more precision as compare to that of flot then it is much obvious that it occupies twice memory as occupies by the float data type.

What are the difference between char and string data types?

A char holds a single character, while a string holds lots of characters. char is a primitive type, and it can hold a single character. String is instead a reference type, thus a full-blown object.

What is difference between float and float in Java?

2 Answers. Float is an object; float is a primitive. Same relationship as Integer and int , Double and double , Long and long . float can be converted to Float by autoboxing, e.g.