How to find text between tags in Salesforce using Apex?

Sample Code:

String str = '<test>abc</test><test>xyz</test>'; 
Pattern TAG_REGEX = Pattern.compile( '<test>[a-z]*</test>' ); 
Matcher matcher = TAG_REGEX.matcher( str ); 
while ( matcher.find() ) { 

    String strOutput = matcher.group().replace( '<test>', '' ).replace( '</test>', '' ); 
    System.debug( strOutput ); 

}

Output:

Sample Code with Capital Letters and Space:

String str = '<test>abc ABC+</test><test>xyz XYZ-</test>';
Pattern TAG_REGEX = Pattern.compile( '<test>[a-zA-Z0-9\\s+-]*</test>' );
Matcher matcher = TAG_REGEX.matcher( str );

while ( matcher.find() ) {

    String strOutput = matcher.group().replace( '<test>', '' ).replace( '</test>', '' );
    System.debug( strOutput );


}

Output: