17 Jan Java Type Casting
The Primitive datatypes in Java are the following: byte, short, int, long, float, double, boolean, and char. Type Casting is to convert one data type to another. There are two types of Type Casting in Java:
- Automatic Type Casting
- Manual Type Casting
Automatic/ Widening Type Casting in Java
The Widening type casting is handled by Java on its own i.e., it occurs when you want to convert a smaller type to a larger type.
The flow for Widening type casting in Java includes:
Let us see an example of the Automatic/ Widening Type Casting in Java:
class Studyopedia {
public static void main(String[] args) {
// int type
int a = 25;
// int to float type i.e. Automatic/ Widening Type Casting
float b = a;
System.out.println("The int = "+a);
System.out.println("After Automatic Casting, the float value = "+b);
}
}
Output
The int = 25 After Automatic Casting, the float value = 25.0
Manual/ Narrowing Type Casting in Java
The narrowing type casting is handled by Java on its own i.e., it occurs when you want to convert a larger type to a smaller type.
The flow for Automatic type casting in Java includes:
Let us see an example of the Manual/ Narrowing Type Casting in Java:
class Studyopedia {
public static void main(String[] args) {
// float type
float a = 25.7f;
// float to int type i.e. Manual/ Narrow Type Casting
int b = (int)a;
System.out.println("The float = "+a);
System.out.println("After Manual Casting, the int value = "+b);
}
}
Output
The float = 25.7 After Manual Casting, the int value = 25
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