by @David Mišković Fork
{"functions":[],"name":"New Program","main":{"rawId":"main","tpe":"Void","name":"main","statements":[{"@type":"Begin","id":"id_df91ec58_9f24_4ee3_95e8_4f2083d37951"},{"lengthValue":-1,"@type":"Declare","lengthValue1":"5","tpe":"Integer","name":"r","lengthValue2":"5","id":"id_5cdee922_a194_4267_b2ae_0c2b8e5eaf22","initValue":null},{"@type":"Input","name":"r","id":"id_f4123237_930a_4687_960a_e08eee9a3736","prompt":null},{"lengthValue":-1,"@type":"Declare","lengthValue1":"5","tpe":"Real","name":"pi","lengthValue2":"5","id":"id_49436bb7_31a9_4e1d_8f03_afc4b63d08c5","initValue":null},{"@type":"Assign","name":"pi","id":"id_1ffe591a_bc57_428f_91d8_fdf4c070ab89","value":"3.14159"},{"lengthValue":-1,"@type":"Declare","lengthValue1":"5","tpe":"Real","name":"opseg","lengthValue2":"5","id":"id_23f7d1fe_c9b8_489c_8d89_ea4b4899efae","initValue":"2*r*pi"},{"newline":true,"@type":"Output","id":"id_df4778d6_e173_4d2e_8137_db24dfa76b23","value":"opseg"},{"lengthValue":-1,"@type":"Declare","lengthValue1":"5","tpe":"Real","name":"povrsina","lengthValue2":"5","id":"id_05f21943_8c1d_45cb_89e2_fe5b96b53282","initValue":"pow(r, 2)*pi"},{"newline":true,"@type":"Output","id":"id_66060b29_6de4_45da_be83_5cfbca8bea56","value":"povrsina"},{"@type":"Return","id":"id_8c9051c9_970c_4ac6_8123_43d01c2b08b2","maybeValue":null}],"parameters":[]},"id":"id_b3b92ca0_1355_44ce_8915_16bba70d8296","config":{"showDebugVars":true,"useInputPrompt":false,"echoEnteredValue":false,"showIoBtns":true,"showFunctions":true,"lang":"java","showGenCode":true},"version":"0.3","revision":76}