Tuesday, August 3, 2010

Check if String Contains a certain 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.*");


//
.replaceAll("\\W", ""); replace all non-alphanumerics

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