What exactly is Java type long long

Question

I know in Java that "int" is a 32 bit integer and that "long" is a 64 integer. I also know that in C "long long" is an integer at least as large as "long" (but implementation specific).

However I have recently come across some Java code using "long long" and wanted to know how exactly it was defined?

Solution 1

There is no such type in Java. Are you sure the code you read was written in Java? Maybe it was a JNI routine that was called into?

Solution 2

I do not know a type called "long long".

it isn't also listed here: http://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html

Solution 3

"long long" not supported in java

Comments

[Brian]

I know this is old, but I had the same question and it seems, also from a test. Here is the code: int equi(int arr[], int n) { if (n==0) return -1; long long sum = 0; int i; for(i=0;i<n;i++) sum+=(long long) arr[i]; long long sum_left = 0; for(i=0;i<n;i++) { long long sum_right = sum - sum_left - (long long) arr[i]; if (sum_left == sum_right) return i; sum_left += (long long) arr[i]; } return -1; }

[James McGuigan]

Apologies code was supplied as the answer to a Java programming test, but it appears to have been written in C.

[SATYA PRAKASH SHARMA]

In java we just use long that support 64 bit width , like as in for c++(long long)