How do you find the last index of a character in a string in Java?

What is the index of the last character in a string in Java?

The first character in a string is present at index zero and the last character in a string is present at index length of string-1 .

What is last index of Java?

The lastIndexOf() method in Java returns the index of the last occurrence of a given character or substring​. If the character or the substring is not found, ​ the ​function returns −1.

How do you find the index of a character in a string?

The indexOf() method returns the position of the first occurrence of specified character(s) in a string. Tip: Use the lastIndexOf method to return the position of the last occurrence of specified character(s) in a string.

How do you find the index of a string in Java?

Java String indexOf(String substring) Method Example

  1. public class IndexOfExample2 {
  2. public static void main(String[] args) {
  3. String s1 = “This is indexOf method”;
  4. // Passing Substring.
  5. int index = s1.indexOf(“method”); //Returns the index of this substring.
  6. System.out.println(“index of substring “+index);
  7. }
  8. }
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How do I find the first and last index of a string?

3 Answers. You can use String. indexOf(String str) function which will return starting indexof the “CAD”. Then add one less then the length of String to find in the returned value, that will be your last character index of “CAD”.

What is the last index of string?

The lastIndexOf() method returns the position of the last occurrence of a specified value in a string. lastIndexOf() searches the string from the end to the beginning, but returns the index s from the beginning, starting at position 0.

How do you use last index?

The Java String class lastIndexOf() method returns the last index of the given character value or substring. If it is not found, it returns -1. The index counter starts from zero.

Signature.

No. Method Description
1 int lastIndexOf(int ch) It returns last index position for the given char value

What is last index?

The lastIndexOf() method returns the index within the calling String object of the last occurrence of the specified value, searching backwards from fromIndex . Returns -1 if the value is not found.

What is indexOf method in Java?

The Java indexOf() method finds the index position at which a specified string begins. This method lets you find a string within another string. … indexOf() returns the index of a particular character or substring in a string.

What is string method in Java?

All String Methods

Method Description Return Type
toString() Returns the value of a String object String
toUpperCase() Converts a string to upper case letters String
trim() Removes whitespace from both ends of a string String
valueOf() Returns the string representation of the specified value String
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How do you find the index of an object in an array?

The method executes the function once for each element present in the array:

  1. If it finds an array element where the function returns a true value, findIndex() returns the index of that array element (and does not check the remaining values)
  2. Otherwise it returns -1.

How do I extract a character from a string in Java?

Create an empty char array of size 1. Copy the element at specific index from String into the char[] using String. getChars() method.

Using String. charAt() method:

  1. Get the string and the index.
  2. Get the specific character using String. charAt(index) method.
  3. Return the specific character.

Can I override static method in Java?

Can we Override static methods in java? We can declare static methods with the same signature in the subclass, but it is not considered overriding as there won’t be any run-time polymorphism. Hence the answer is ‘No’.

What is replace method in Java?

The Java string replace() method will replace a character or substring with another character or string. … The Java replace() method is used to replace all occurrences of a particular character or substring in a string with another character or substring.