Java String startsWith() method

Java String startsWith() method checks whether current String starts with given prefix or not .

Syntax:

public boolean startsWith(String prefix)
public boolean startsWith(String prefix, int offset)

Parameters:

prefix : It is sequence of character

Returns:

It returns true, if this string starts with given prefix else returns false.

Java String startsWith() method example 1

public class JavaStringStartsWithEx1
{ 
        public static void main(String args[])
       { 
     String s1=("java string split method by tutorialsandexample"); 
     System.out.println(s1.startsWith("ja")); 
     System.out.println(s1.startsWith("java string")); 
       }
}

Output:

true
true

Java String startsWith(String prefix, int offset) Method Example 2

    public class JavaStringStartsWithExample2
    { 
        public static void main(String[] args) { 
            String str = "TutorialAndExample"; 
            System.out.println(str.startsWith("T")); // True 
            System.out.println(str.startsWith("a")); // False 
            System.out.println(str.startsWith("u",1)); // True 
        } 
    }

Output

true
false
true

Java String startsWith() method example 3

 public class JavaStringStartsWithEx3 {
public static void main(String[] args) {
    System.out.println();
    String s1 = "www.tutorialandexamples.com";
    System.out.println(s1);
    String startstr = "www";
    String startstr1 = "http://";
    boolean returnval1 = s1.startsWith(startstr);
    boolean returnval2 = s1.startsWith(startstr1);
    System.out.println(returnval1);
    System.out.println(returnval2);
    System.out.println();
  }
}

Output:

www.tutorialandexamples.com
true
false

Java String startsWith() method example 4

import java.lang.*;
public class JavaStringstartsWithEx4 {
   public static void main(String[] args) {
  System.out.println();
   String str = "www.tutorialandexamples.com";
   System.out.println(str);
   String startstr = "examples";
   // checks that string starts with given substring and starting index
   boolean returnval1 = str.startsWith(startstr);
   // prints true if the string starts with given substring
   System.out.println("starts with " + startstr + " ? " + returnval1);
   }
}

Output:

www.tutorialandexamples.com
starts with examples ? false

Java String startsWith() method example 5

import java.lang.*;
public class JavaStringstartsWithEx5 {
   public static void main(String[] args) {
  System.out.println();
   String str = "www.tutorialandexamples.com";
   System.out.println(str);
   // the start string to be checked
   String startstr = "examples";
   String startstr1 = "examples";
   // checks that string starts with given substring and starting index
   boolean returnval1 = str.startsWith(startstr);
   boolean returnval2 = str.startsWith(startstr1, 16);
   // prints true if the string starts with given substring
   System.out.println("starts with " + startstr + " ? " + returnval1);
   System.out.println("string " + startstr1 + " starting from index 4 ? "
   + returnval2);
   System.out.println();
   }

Output:

www.tutorialandexamples.com
starts with examples ? false
string examples starting from index 4 ? true