interface DoMath { double getArea(int rad); } interface MathPlus { double getVol(int b, int h); } /* Missing Statements ? */ which two code fragments inserted at end of the program, will allow to compile? 1.class AllMath extends DoMath { double getArea(int r); } 2.interface AllMath implements MathPlus { double getVol(int x, int y); } 3.interface AllMath extends DoMath { float getAvg(int h, int l); } 4.class AllMath implements MathPlus { double getArea(int rad); } 5.abstract class AllMath implements DoMath, MathPlus { public double getArea(int rad) { return rad * rad * 3.14; } }

interface DoMath { double getArea(int rad); } interface MathPlus { do

1.	interface DoMath { double getArea(int rad); } interface MathPlus { double getVol(int b, int h); } /* Missing Statements ? / which two code fragments inserted at end of the program, will allow to compile? 1.class AllMath extends DoMath { double getArea(int r); } 2.interface AllMath implements MathPlus { double getVol(int x, int y); } 3.interface AllMath extends DoMath { float getAvg(int h, int l); } 4.class AllMath implements MathPlus { double getArea(int rad); } 5.abstract class AllMath implements DoMath, MathPlus { public double getArea(int rad) { return rad rad * 3.14; } }
A.	1 only
B.	2 only
C.	3 and 5
D.	1 and 4
Answer» D. 1 and 4

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interface DoMath { double getArea(int rad); } interface MathPlus { double getVol(int b, int h); } /* Missing Statements ? */ which two code fragments inserted at end of the program, will allow to compile? 1.class AllMath extends DoMath { double getArea(int r); } 2.interface AllMath implements MathPlus { double getVol(int x, int y); } 3.interface AllMath extends DoMath { float getAvg(int h, int l); } 4.class AllMath implements MathPlus { double getArea(int rad); } 5.abstract class AllMath implements DoMath, MathPlus { public double getArea(int rad) { return rad * rad * 3.14; } }

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