static int toggleLastMBits ( int n , int m ) {
  int num = ( 1 << m ) - 1 ;
  return ( n ^ num ) ;
}

static int toggleLastMBits ( int n , int m ) { int num = ( 1 << m ) - 1 ; return ( n ^ num ) ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (parenthesized_expression (binary_expression left: (decimal_integer_literal) right: (identifier))) right: (decimal_integer_literal)))) (return_statement (parenthesized_expression (binary_expression left: (identifier) right: (identifier))))))