public class Quadrilateral { private int side1, side2, side3, side4; public Quadrilateral(int s, int ss, int sss, int ssss){ side1 = s; side2 = ss; side3 = sss; side4 = ssss; } public int getAngleSum(){ return 360; } public int getPerimeter(){ return side1 + side2 + side3 + side4; } public void printDimensions(){ System.out.println(side1 + ", " + side2 + ", " + side3 + ", " + side4); } public int getSide1(){ return side1; } public int getSide2(){ return side2; } public int getSide3(){ return side3; } public int getSide4(){ return side4; } }