How to use float type output in Java

float is a floating point data type
float type memory allocation 4 bytes, occupying 32 bits, ranging from 10^-38 to 10^38 and - 10^38 to -10^-38

Note that the data defined by float type must have "f" or "F" at the end, in order to distinguish it from double

For example: float x=123.456f,y=2e20f;

The output statement is generally:

System.out.printf("x的值为%f,y的值为%f", i,j)

% (Number: placeholder function, control output The format is neat and consistent) Data type (letter abbreviation of the corresponding data type)

Refer to the JAVA API definition as follows:
'd ' The integer result is formatted as a decimal integer
'o' The integer result is formatted as an octal integer
'x', 'X' The integer result is formatted as a hexadecimal integer
'e' , 'E' Floating point results are formatted as decimal numbers in computer science notation
'f' Floating point results are formatted as decimal numbers
'g', 'G' Floating point numbers are formatted according to precision and the rounded value, formatting the result using computer science notation or decimal format.
'a', 'A' floating point The result is formatted as a hexadecimal floating point number with significand and exponent

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