Java String isEmpty()

Java String [Java String]Java String

isEmpty() 

public boolean isEmpty()

true false

length() 0

isEmpty()

public class Main { public static void main(String[] args) { String myStr1 = "Runoob"; String myStr2 = ""; // String myStr3 = " "; // length() 0 System.out.println("myStr1 " + myStr1.isEmpty()); System.out.println("myStr2 " + myStr2.isEmpty()); System.out.println("myStr3 " + myStr3.length()); System.out.println("myStr3 " + myStr3.isEmpty()); } }

myStr1 false
myStr2 true
myStr3 4
myStr3 false

Java String [Java String]Java String