String methods – substring

As its name says, it is used to get the substring from the any String.

It has 2 types of implementations.

1. String substring(int beginIndex)
2. String substring(int beginIndex, int endIndex)

Let’s look at them one by on with examples.

String substring(int beginIndex):

It is used to return the substring starting from the specified index(beginIndex) till the end of the string.

e.g. Suppose, we have a string “”Hello World”. If we want to return a substring “world” then we have to do the following shown in the example below.

public class ExampSubstring {
	public static void main(String[] args) {

		String val1 = "Hello World";
		System.out.println("Returns the substring - "+val1.substring(5)); // returns world
	}
}

String substring(int beginIndex, int endIndex):

Returns the substring starting from the given index(beginIndex) till the specified index(endIndex).

public class ExampSubstring {
	public static void main(String[] args) {

		String val1 = "Hello World";
		System.out.println("Returns the substring - "+val1.substring(3,8)); // returns world
	}
}