static boolean checkOrigin ( int x1 , int y1 , int x2 , int y2 ) {
  return ( x1 * ( y2 - y1 ) == y1 * ( x2 - x1 ) ) ;
}

static boolean checkOrigin ( int x1 , int y1 , int x2 , int y2 ) { return ( x1 * ( y2 - y1 ) == y1 * ( x2 - x1 ) ) ; }
(method_declaration (modifiers) type: (boolean_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (return_statement (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (parenthesized_expression (binary_expression left: (identifier) right: (identifier)))) right: (binary_expression left: (identifier) right: (parenthesized_expression (binary_expression left: (identifier) right: (identifier)))))))))