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//program to create a function that returns area of circle based on radius passed to function as argument class cirarea { public float area(int radius) { float ar; ar=3.14f*radius*radius; return ar; } } public class areacirclereturn { public static void main(String[] args) { cirarea ob=new cirarea(); float result; result=ob.area(10); System.out.println("area of circle is " + result); } }