Difference between isEmpty() and isBlank() Method in java 11

Question

Java 11 has added A new instance method isBlank() to java.lang.String class.

What\'s the basic difference between the exi

Answer 1

Java 11 added has new method called .isBlank() in String class

1. isBlank() method is equal to str.trim().isEmpty() in earlier to java 11 versions
2. isEmpty() : Returns true if, and only if, length() is 0

This is the internal implementation of isBlank() method in String class of java 11

public boolean isBlank() {
    return indexOfNonWhitespace() == length();
}

private int indexOfNonWhitespace() {
    if (isLatin1()) {
        return StringLatin1.indexOfNonWhitespace(value);
    } else {
        return StringUTF16.indexOfNonWhitespace(value);
    }
}