Q:

How to check whether a given string is empty or not in Java?

belongs to collection: Java String Programs

mahmoud2506
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2022-05-06
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How to check whether a given string is empty or not in Java?

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mahmoud2506
2022-05-06
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Consider the program:

Given string (Input string) and we have to whether it is empty string or not?

/*Java Program to check whether string is empty or not*/

public class JavaisEmptyPrg
{
	public static void main(String args[])
	{
		String str1="www.includehelp.com";
		String str2="";

		if(str1.isEmpty()==true)
		System.out.println("Str1 is an empty string.");
		else
		System.out.println("Str1 is not an empty string.");

		if(str2.isEmpty()==true)
			System.out.println("Str2 is an empty string.");
		else
			System.out.println("Str2 is not an empty string.");
	}
}

Output

Complie: javac JavaisEmptyPrg.java
Run: java JavaisEmptyPrg

Output

Str1 is not an empty string.
Str2 is an empty string.

 

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