What is the inclusive range of float and double in Java?

Question

What is the inclusive range of float and double in Java?

Why it is not suggested to float, double when precision is critical.ja

Answer 1

Primitive Data Types in Java 

Boolean: 1-bit 

• May take on the values true and false only. 

Byte: 1 signed byte (two's complement).  

• Covers values from -128 to 127. 

short: 2 bytes, signed (two's complement) 

• -32,768 to 32,767 

int: 4 bytes, signed (two's complement). 

•  -2,147,483,648 to 2,147,483,647. 

long: 8 bytes signed (two's complement).  

• Ranges from -9,223,372,036,854,775,808 to +9,223,372,036,854,775,807. 

float: 4 bytes, IEEE 754.  

• Covers a range from 1.40129846432481707e-45 to 3.40282346638528860e+38 (positive or negative). 

double: 8 bytes IEEE 754.  

• Covers a range from 4.94065645841246544e-324d to 1.79769313486231570e+308d (positive or negative). 

char: 2 bytes, unsigned, Unicode  

• Ranges from 0 to 65,535