Answers for "java decimal type"

specify decimal places java

double test = 12.15;
DecimalFormat df = new DecimalFormat("#.0");
System.out.println(df.format(test)); // Console: 12.2
// # - prints a digit if provided, nothing otherwise
// . - indicates where to put the decimal seperator
// 0 - prints a digit if provided, 0 otherwise

java 2 decimals

double res = Math.round(a * 100) / 100;

what is primitive data type in java

Primitive types are the most basic data types available within the Java language. There are 8: boolean , byte , char , short , int , long , float and double . These types serve as the building blocks of data manipulation in Java. Such types serve only one purpose — containing pure, simple values of a kind.

what are the primitive types java

Primitive types are the most basic data
types available within the Java language. 
Some of them are boolean , byte , char ,
short , int , long , float and double . 
These types serve as the building blocks
of data manipulation in Java.