What is difference between equals and equals ignore case?
The only difference between them is that the equals() methods considers the case while equalsIgnoreCase() methods ignores the case during comparison. For e.g. The equals() method would return false if we compare the strings “TEXT” and “text” however equalsIgnoreCase() would return true.
What does equals ignore case do in Java?
The Java String equalsIgnoreCase() method compares two strings, ignoring case differences. If the strings are equal, equalsIgnoreCase() returns true. If not, it returns false.
How do you write equals ignore case in Java?
Java String equalsIgnoreCase() Method Example
- public class EqualsIgnoreCaseExample{
- public static void main(String args[]){
- String s1=”javatpoint”;
- String s2=”javatpoint”;
- String s3=”JAVATPOINT”;
- String s4=”python”;
- System.out.println(s1.equalsIgnoreCase(s2));//true because content and case both are same.
Does String equals ignore case?
Two strings are considered equal ignoring case if they are of the same length and corresponding characters in the two strings are equal ignoring case.
Which is faster equals or equalsIgnoreCase?
equalsIgnoreCase() is 20–50% faster than the equals(param.
What does replaceFirst do in Java?
The replaceFirst() method returns a new string where the first occurrence of the matching substring is replaced with the replacement string.
How do you do equals in Java?
Method 2: Using equals() method In Java, string equals() method compares the two given strings based on the data / content of the string. If all the contents of both the strings are same then it returns true. If all characters are not matched then it returns false.
Does equalsIgnoreCase handle null?
equalsIgnoreCase(null); will definitely result in a NullPointerException. So equals methods are not designed to test whether an object is null, just because you can’t invoke them on null .
What is trim in Java?
Java String trim() Method The trim() method removes whitespace from both ends of a string. Note: This method does not change the original string.
What does replaceAll do in Java?
replaceAll() The method replaceAll() replaces all occurrences of a String in another String matched by regex. This is similar to the replace() function, the only difference is, that in replaceAll() the String to be replaced is a regex while in replace() it is a String.
What is difference between replace and replaceAll in Java?
The difference between replace() and replaceAll() method is that the replace() method replaces all the occurrences of old char with new char while replaceAll() method replaces all the occurrences of old string with the new string.