Does compareTo return an integer?

The compareTo() method is a method of Integer class under java. lang package. … It returns the result of the value 0 if Integer is equal to the argument Integer, a value less than 0 if Integer is less than the argument Integer and a value greater than 0 if Integer is greater than the argument Integer.

What is the value returned by function compareTo ()?

zero
Explanation: compareTo() function returns zero when both the strings are equal, it returns a value less than zero if the invoking string is less than the other string being compared and value greater than zero when invoking string is greater than the string compared to.

What is the return type of compare to ()?

It compares two strings lexicographically. Its return type is int.

How does compareTo work in Java?

The Java String compareTo() method is used for comparing two strings lexicographically. … If both the strings are equal then this method returns 0 else it returns positive or negative value. The result is positive if the first string is lexicographically greater than the second string else the result would be negative.

Which of these data types values is returned by equals method of string class?

Which of these data type value is returned by equals() method of String class? Explanation: equals() method of string class returns boolean value true if both the string are equal and false if they are unequal.

What do you mean by nameless objects?

anonymous objects
Answer: (d) An object that has no reference. Explanation: The nameless objects are basically referred to as anonymous objects. The anonymous objects do not have any names. We can also say that, when an object is initialized but is not assigned to any reference variable, it is called an anonymous object.

What does compareTo method do?

The compareTo() method compares two strings lexicographically. … The method returns 0 if the string is equal to the other string. A value less than 0 is returned if the string is less than the other string (less characters) and a value greater than 0 if the string is greater than the other string (more characters).

How can I compare two BigDecimal values?

compareTo(BigDecimal val) compares the BigDecimal Object with the specified BigDecimal value. Two BigDecimal objects that are equal in value but have a different scale (like 2.0 and 2.00) are considered equal by this method.

Is collection an interface or class?

The Collection is an interface whereas Collections is a utility class in Java. The Set, List, and Queue are some of the subinterfaces of Collection interface, a Map interface is also part of the Collections Framework, but it doesn’t inherit Collection interface.

Is compareTo case sensitive Java?

Java String compareToIgnoreCase() method compares two strings lexicographically ignoring case. This method is same as String. compareTo() method except compareTo() method is case sensitive.

How do you use compareTo objects in Java?

The compareTo method defines the natural order; the default way for ordering objects of a class. It should return a negative integer(usually -1), if the current triggering object is less than the passed one, and positive integer (usually +1) if greater than, and 0 if equal.

What does .equals do in Java?

equals() Method. In Java, the 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 the same, it returns true.

Does compareTo ignore case?

The compareToIgnoreCase() method compares two strings lexicographically, ignoring lower case and upper case differences. … The method returns 0 if the string is equal to the other string, ignoring case differences.

What is the difference between compareTo and compareToIgnoreCase in Java?

The Java String compareToIgnoreCase() method compares two strings lexicographically and returns 0 if they are equal. … Unlike compareTo() method, the compareToIgnoreCase() method ignores the case (uppercase or lowercase) while comparing strings.

Is string compare case-sensitive?

The String. CompareTo instance methods always perform an ordinal case-sensitive comparison. They are primarily suited for ordering strings alphabetically.

What is equals ignore case in java?

Java String equalsIgnoreCase() Method

The equalsIgnoreCase() method compares two strings, ignoring lower case and upper case differences. This method returns true if the strings are equal, and false if not.

How do you ignore a case in java?

use toUpperCase() or toLowerCase() method of String class. Show activity on this post. You ignore case when you treat the data, not when you retrieve/store it. If you want to store everything in lowercase use String#toLowerCase, in uppercase use String#toUpperCase.

How do you ignore letters in java?

“ignore special characters in string in java” Code Answer
  1. String str= “This#string%contains^special*characters&.”;
  2. str = str. replaceAll(“[^a-zA-Z0-9]”, ” “);
  3. System. out. println(str);

What is difference between equals and equalsIgnoreCase in Java?

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.

How do you ignore punctuation marks in Java?

We can use a regex pattern in the replaceAll() method with the pattern as \\p{Punct} to remove all the punctuation from the string and get a string punctuation free. The regex pattern is \\p{Punct} , which means all the punctuation symbols.

How do I use equal 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. Two characters c1 and c2 are considered the same ignoring case if at least one of the following is true: The two characters are the same (as compared by the == operator)

Which is faster equals or equalsIgnoreCase?

equalsIgnoreCase() is 20–50% faster than the equals(param.