index of() method example in Java

// Program to explain the following String function :
// int indexOf(int ch) 
// int indexOf( String str )
class  MindexOf
{
public static void main(String args[ ])
{
 String s1 = "Java Programming Examples Java Programming Examples.";
   
 System.out.println(" Index of " + 'P' + " = " + s1.indexOf('P'));
 System.out.println(" Index of " + 'x' + " = " + s1.indexOf('x'));
 System.out.println(" Index of " + "Examples" + " = " + s1.indexOf("Examples"));
 System.out.println(" Index of " + "JAVA" + " = " + s1.indexOf("JAVA"));
}
}

Output:
Index of P = 5
Index of x = 18
Index of Examples = 17
Index of JAVA = -1