Using primitive types in Java

using primitive types in java

problem

You wish to learn the primitive types of Java programming language. In this post we will see a list of the types and examples.

SOLUTION

Java’s type system offers a list of data types that we can use out of the box, the primitive types.

Java is a statically-typed language meaning we must first declare a variable before it can be used. For example:

				
					int month = 12;

Now we can use this variable straightaway. Since it’s an int we can use any mathematical operator +, -, *, /, %. The value 12 is stored in RAM in an easy way, we don’t have to worry as programmers.

primitive types

char
short
int
long
float
double
boolean

example usage

				
					char ch = 'x'; //a single character in single quotes

				
					short num = 125;

				
					int num = 12567;

				
					long longNumber = 34534311L; //good to have the L at the end to distinguish from double

				
					float floatingPointNumber = 3.14159268f; //requires the f at the end

				
					double doublePrecisionNumber = 12983.228;

				
					boolean isValid = true; //true or false value

conclusion

In this post we saw the primitive types of Java and how to use them/ initialize them.

References

https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html

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Ellion

Professional IT consultant, writer, programmer enthusiast interested in all sorts of coding.
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