java - Are arithmetic operations on literals calculated at compile time or run time?

Question

I have the following:

double timeInMinutes = (double) timeInMilliseconds / (1000 * 60);

Is the operation (1000 * 60) done at compile time or at run time? In other words, are there performance differences during run time between the code snippet above and:

double timeInMinutes = (double) timeInMilliseconds / 60000;

EDIT: my question is different from Will the Java compiler precalculate sums of literals?, as I'm mixing the use of variables and literals in the arithmetic operations. It's a small difference, but as @TagirValeev noted in the comments (Are arithmetic operations on literals calculated at compile time or run time?), there are instances where some literals aren't pre-compiled even though they could be.

Answer 1

As per JLS §15.2 - Forms of Expressions

Some expressions have a value that can be determined at compile time. These are constant expressions (§15.28).

Multiplicative operators like *, /, and % falls under constant expressions, so it would be determined at compile time.

@SergeyMorozov was faster than me to write and get byte code proof (#2 = Integer 60000) but here is the practical proof and above is theoretical/official statement:

Try generating byte code at your end as well using 1000 * 60 and 60000, and you will see same byte code instructions, and hence there would be same runtime performance.

Java class:

public class Test {
    public static void main(String[] args) {
        int compileTest = 1000 * 60;
    }
}

Byte code:

Classfile /E:/Test.class
  Last modified Oct 9, 2015; size 265 bytes
  MD5 checksum fd115be769ec6ef7995e4c84f7597d67
  Compiled from "Test.java"
public class Test
  SourceFile: "Test.java"
  minor version: 0
  major version: 51
  flags: ACC_PUBLIC, ACC_SUPER
Constant pool:
   #1 = Methodref          #4.#13         //  java/lang/Object."<init>":()V
   #2 = Integer            60000
   #3 = Class              #14            //  Test
   #4 = Class              #15            //  java/lang/Object
   #5 = Utf8               <init>
   #6 = Utf8               ()V
   #7 = Utf8               Code
   #8 = Utf8               LineNumberTable
   #9 = Utf8               main
  #10 = Utf8               ([Ljava/lang/String;)V
  #11 = Utf8               SourceFile
  #12 = Utf8               Test.java
  #13 = NameAndType        #5:#6          //  "<init>":()V
  #14 = Utf8               Test
  #15 = Utf8               java/lang/Object
{
  public Test();
    flags: ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
         0: aload_0
         1: invokespecial #1                  // Method java/lang/Object."<init>":()V
         4: return
      LineNumberTable:
        line 1: 0

  public static void main(java.lang.String[]);
    flags: ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=2, args_size=1
         0: ldc           #2                  // int 60000
         2: istore_1
         3: return
      LineNumberTable:
        line 3: 0
        line 4: 3
}