Long vs int java

An int is a 32-bit integer; a long is a 64-bit integer. Which one to use depends on how large the numbers are that you expect to work with.

int and long are primitive types, while Integer and Long are objects. 
  
  Primitive types are more efficient, but sometimes you need to use objects;
for example, Java's collection classes can only work with objects, 
so if you need a list of integers you have to make it a List<Integer>, for example (you can't use int in a List directly).

Similar codes

1 vote217 views3 answers
How to add string to array in java
Java
2 votes209 views1 answer
Java union type
Java
0 vote224 views1 answer
Error: Could not find or load main class mcp.client.Start Caused by: java.lang.ClassNotFoundException: mcp.client.Start
Java
0 vote216 views1 answer
How to catch enter key in java text field
Java
1 vote211 views1 answer
Void set method using collections
Java
0 vote218 views1 answer
Java create arraylist with size
Java
0 vote236 views1 answer
Free pearson uk textbooks
Java
13 votes226 views2 answers
Dictionary in java
Java
1 vote216 views2 answers
How to use string variables with an if statement in java
Java
2 votes229 views2 answers
Split each character in a string (java)
Java