CircleCalculator constructor 4. public CircleCalculator ( constructor radius 0.0; prototype area 0.0; circumference 0.0; later we will see that constructors can have Here we just assign values of zero for each arguments data field.The actual radius will be obtained using the readlnput method and the area and circumference will be calculated using the doCalculations method. Programming in Java JAVA4-11 Programming in Java CircleCalculator constructor public CircleCalculator() { radius = 0.0; area = 0.0; circumference = 0.0; } Here we just assign values of zero for each data field. The actual radius will be obtained using the readInput method and the area and circumference will be calculated using the doCalculations method. later we will see that constructors can have arguments constructor prototype