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Java - String lastIndexOf() Method
Description:
This method has following variants:
int lastIndexOf(int ch): Returns the index within this string of the last occurrence of the specified character or -1 if the character does not occur.
public int lastIndexOf(int ch, int fromIndex): Returns the index of the last occurrence of the character in the character sequence represented by this object that is less than or equal to fromIndex, or -1 if the character does not occur before that point.
public int lastIndexOf(String str): If the string argument occurs one or more times as a substring within this object, then it returns the index of the first character of the last such substring is returned. If it does not occur as a substring, -1 is returned.
public int lastIndexOf(String str, int fromIndex): Returns the index within this string of the last occurrence of the specified substring, searching backward starting at the specified index.
Syntax:
Here is the syntax of this method:
int lastIndexOf(int ch)
or
public int lastIndexOf(int ch, int fromIndex)
or
public int lastIndexOf(String str)
or
public int lastIndexOf(String str, int fromIndex)
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Parameters:
Here is the detail of parameters:
Return Value :
Example:
import java.io.*;
public class Test{
public static void main(String args[]){
String Str = new String("Welcome to Tutorialspoint.com");
String SubStr1 = new String("Tutorials" );
String SubStr2 = new String("Sutorials" );
System.out.print("Found Last Index :" );
System.out.println(Str.lastIndexOf( 'o' ));
System.out.print("Found Last Index :" );
System.out.println(Str.lastIndexOf( 'o', 5 ));
System.out.print("Found Last Index :" );
System.out.println( Str.lastIndexOf( SubStr1 ));
System.out.print("Found Last Index :" );
System.out.println( Str.lastIndexOf( SubStr1, 15 ));
System.out.print("Found Last Index :" );
System.out.println(Str.lastIndexOf( SubStr2 ));
}
}
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This produces following result:
Found Last Index :27
Found Last Index :4
Found Last Index :11
Found Last Index :11
Found Last Index :-1
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