public static void main ( String [ ] args ) {
  int [ ] arr = {
    10 , 20 , 30 , 15 , 15 };
    Vector < Integer > out = Diffs ( arr , 3 ) ;
    for ( int n : out ) System . out . print ( n + ", " ) ;
  }
  
public static void main ( String [ ] args ) { int [ ] arr = { 10 , 20 , 30 , 15 , 15 } ; Vector < Integer > out = Diffs ( arr , 3 ) ; for ( int n : out ) System . out . print ( n + " , ▁ " ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) body: (block (local_variable_declaration type: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_initializer (decimal_integer_literal) (decimal_integer_literal) (decimal_integer_literal) (decimal_integer_literal) (decimal_integer_literal)))) (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (type_identifier))) declarator: (variable_declarator name: (identifier) value: (method_invocation name: (identifier) arguments: (argument_list (identifier) (decimal_integer_literal))))) (enhanced_for_statement type: (integral_type) name: (identifier) value: (identifier) body: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (string_literal))))))))