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Java Program to locate a substring in a string
To locate a substring in a string, use the indexOf() method.
Let’s say the following is our string.
String str = "testdemo";
Find a substring ‘demo’ in a string and get the index.
int index = str.indexOf( 'demo');
Example
public class Demo {
public static void main(String []args) {
String str = "testdemo";
System.out.println("String: "+str);
int index = str.indexOf("demo");
System.out.printf("Substring 'demo' is at index %d
", index);
}
}Output
String: testdemo Substring 'demo' is at index 4
Updated on: 27-Jun-2020
13K+ Views
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