Question 3(iv)Differentiate between indexOf() and lastIndexOf().

Question

Accepted Answer

indexOf()lastIndexOf()The indexOf() method returns the index of the first occurrence of the specified character in a string.The lastIndexOf() method returns the index of the last occurrence of the specified character in a string.Example:String str = "How are you?";int index = str.indexOf('o');System.out.println("Index = " + index);The output isIndex = 1Example:String str = "How are you?";int index = str.lastIndexOf('o');System.out.println("Index = " + index);The output isIndex = 9

indexOf()	lastIndexOf()
The indexOf() method returns the index of the first occurrence of the specified character in a string.	The lastIndexOf() method returns the index of the last occurrence of the specified character in a string.
Example: String str = "How are you?"; int index = str.indexOf('o'); System.out.println("Index = " + index); The output is Index = 1	Example: String str = "How are you?"; int index = str.lastIndexOf('o'); System.out.println("Index = " + index); The output is Index = 9

String Handling — Question 15

Question 3(iv)