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- How to convert long (Long) and int (Integer) in Java
- 1. Convert long type into int type, where long type is the basic type:
- 2. Convert the long type to the int type. The long type here is the packaging type:
- 3. Convert the int type into a long type. Here the int type is the basic type:
- 4. Convert Integer to long type. Here the Integer type is the packaging type:
- 5. There are other methods. For example, the packaging type generally has parseLong's parseXXX static method, but generally only the String type can be passed.
How to convert long (Long) and int (Integer) in Java
1. Convert long type into int type, where long type is the basic type:
long a = 10;
int b = (int)a;
2. Convert the long type to the int type. The long type here is the packaging type:
Long a = 10;
int b=();
3. Convert the int type into a long type. Here the int type is the basic type:
int a = 10;
long b = (int)a;
4. Convert Integer to long type. Here the Integer type is the packaging type:
int a = 10;
Long b = ();
5. There are other methods. For example, the packaging type generally has parseLong's parseXXX static method, but generally only the String type can be passed.
Summary: The conversion here is to pay attention to the differences between the eight basic data types of Java and the eight packaging data types.