Determining if a string contains substring

String string = "Madam, I am Adam";

 // Starts with
 boolean  b = string.startsWith("Mad");  // true

 // Ends with
 b = string.endsWith("dam");             // true

 // Anywhere
 b = string.indexOf("I am") > 0;         // true

 // To ignore case, regular expressions must be used

 // Starts with
 b = string.matches("(?i)mad.*");

 // Ends with
 b = string.matches("(?i).*adam");

 // Anywhere

 b = string.matches("(?i).*i am.*");


http://www.exampledepot.com/egs/java.lang/HasSubstr.html