“What type is used for fractions in Java?”

In Java, fractions can be represented using either integer or floating-point data types. Here are several common ways to represent them:

Integer representation: representing the numerator and denominator with two separate integer variables, for example using ‘int’ type to represent the numerator and denominator.

   int 分子 = 3;
   int 分母 = 4;

Floating point notation: utilize the `float` or `double` data types to represent the value of a fraction, for example:

   float 分数 = 0.75f;
   double 分数 = 0.75;

Choose the appropriate representation method based on specific needs. For precise calculations, it is recommended to use integer representation or the `BigDecimal` class. For simple calculations, floating-point representation is sufficient.