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/*Java String isEmpty Example.This Java String isEmpty example shows how to check whether the givenstring is empty or not using isEmpty method of Java String class.*/public class JavaStringIsEmptyExample {public static void main(String args[]){
String str1 = “”;String str2 = null;String str3 = “Hello World”;
/** To check whether the String is empty or not, use* boolean isEmpty() method of Java String class.** This method returns true if and only if string.length() is 0.*/
System.out.println(“Is String 1 empty? :” + str1.isEmpty());
//this will throw NullPointerException since str2 is null//System.out.println(“Is String 2 empty? :” + str2.isEmpty());System.out.println(“Is String 3 empty? :” + str3.isEmpty());
/** Please note that isEmpty method was added in JDK 1.6 and it is not available* in previous versions.** However, you can use* (string.length() == 0) instead of (string.isEmpty())* in previous JDK versions.*/}}
/*Output of Java String isEmpty would beIs String 1 empty? :trueIs String 3 empty? :false*/
Friday, 13 April 2018
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ReplyDeletenice article for beginners.thank you.
javacodegeeks
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