String methods – startsWith and endsWith

In this post, we will discuss 2 methods which are endsWith() and startsWith().

Let’s understand with examples.

boolean endsWith(String suffix):

This method checks if string ends with specified suffix. If ends with specified  suffix then returns true else false.

public class StringMethodsEx {

	public static void main(String[] args) {
		
		String val1 = "Hello world!!";
		
		System.out.println(val1.endsWith("!!"));  //returns true
		System.out.println(val1.endsWith("World"));  //returns false
	}
}
Output:
true
false

 

startswith() :

This method returns true if string starts with specified prefix, else will return false. It has 2 types of implementations.

1. boolean startsWith(String prefix): 

It checks if string starts with specified prefix or not.

Note: It will return true if the argument is an empty string.
public class StringMethodsEx {

	public static void main(String[] args) {
		
		String val1 = "Hello world!!";	
		System.out.println(val1.startsWith("Hello"));  //returns true
		System.out.println(val1.endsWith("World"));  //returns false
		
	}
}
Output:
true
false

boolean startsWith(String prefix,int toffset):

This method returns true if string starts with specified prefix starting from the given index.

public class StringMethodsEx {

	public static void main(String[] args) {
		
		String val1 = "Hello world!!";	
		System.out.println(val1.startsWith("Hello", 0));  //returns true
		System.out.println(val1.startsWith("Hello",4));  //returns false as Hello string start at 0	
	}
}
Output:
true
false
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Shekhar Sharma

Shekhar Sharma is founder of testingpool.com. This website is his window to the world. He believes that ,"Knowledge increases by sharing but not by saving".

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