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Interface Myconstants {
int r = 42;
int s = 69;
int area;
Inserting code
Final double circumference = 2 *math.pi*r;
Cannot reference a field before it is defined
int total = total + R +s; The following total will go wrong
int ArRa = r*s;

Syntax error on token ' MAIN ', Variabledeclaratorid expected after this token
public static main=15; Main wrong

Illegal modifier for the interface field Myconstants.code; Only public, static & final is permitted
protected int CODE = 31337; Code is wrong.

}

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