Keywords in Java

Java 8 Object Oriented Programming Programming

Keywords in Java are reserved words that represent predefined actions, internal processes etc. Because of this, keywords cannot be used as names of variables, functions, objects etc.

The main difference between keywords and identifiers is that keywords are reserved words that represent predefined actions while identifiers are the names of variables, functions, objects etc.

Some of the keywords in the Java are given as follows −

abstract	assert	boolean	break
byte	case	catch	char
class	const	continue	default
do	double	else	enum
extends	final	finally	float
for	goto	if	implements
import	instanceof	int	interface
long	native	new	package
private	protected	public	return
short	static	strictfp	super
switch	synchronized	this	throw
throws	transient	try	void
volatile	while

A program that demonstrates keywords is given as follows −

Example

Live Demo

public class Example {
public static void main(String[] args) {
int i = 5;
char c = 'A';
System.out.println("i = " + i);
System.out.println("c = " + c);
}
}

Output

i = 5
c = A

Now let us understand the above program.

The keywords in the above program are int and char that specify integer and character data types respectively. Also i and c are identifiers.

In the above program, the values of i and c are defined and then they are printed. The code snippet that demonstrates this is given as follows.

int i = 5;
char c = 'A';
System.out.println("i = " + i);
System.out.println("c = " + c);

Samual Sam

Published on 07-Dec-2018 09:46:30

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