public static String prefixSuffix ( String a , String b , int l ) {
  String prefix = a . substring ( 0 , l ) ;
  int lb = b . length ( ) ;
  String suffix = b . substring ( lb - l ) ;
  return ( prefix + suffix ) ;
}

public static String prefixSuffix ( String a , String b , int l ) { String prefix = a . substring ( 0 , l ) ; int lb = b . length ( ) ; String suffix = b . substring ( lb - l ) ; return ( prefix + suffix ) ; }
(method_declaration (modifiers) type: (type_identifier) name: (identifier) parameters: (formal_parameters (formal_parameter type: (type_identifier) name: (identifier)) (formal_parameter type: (type_identifier) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (identifier))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (identifier)))))) (return_statement (parenthesized_expression (binary_expression left: (identifier) right: (identifier))))))