HW1_2

Main

package com;

public class Main {

	public static void main(String[] args) {
		Triangle first = new Triangle();
		first.setSizeA(12);
		first.setSizeB(14);
		first.setSizeC(8);
		first.triangleTrueOrFalse();
		Triangle second = new Triangle();
		second.setSizeA(1200);
		second.setSizeB(14);
		second.setSizeC(8);
		second.triangleTrueOrFalse();
		
	}
}

Triangle

package com;

public class Triangle {
	private int sizeA;
	private int sizeB;
	private int sizeC;
	
	
	public int getSizeA() {
		return sizeA;
	}
	public void setSizeA(int sizeA) {
		this.sizeA = sizeA;
	}
	public int getSizeB() {
		return sizeB;
	}
	public void setSizeB(int sizeB) {
		this.sizeB = sizeB;
	}
	public int getSizeC() {
		return sizeC;
	}
	public void setSizeC(int sizeC) {
		this.sizeC = sizeC;
	}
	
	public void triangleTrueOrFalse() {
		if((sizeA+sizeB>sizeC)&&(sizeA+sizeC>sizeB)&&(sizeB+sizeC>sizeA)) {
			System.out.printf("Треугольник с сторонами %1$s, %2$s, %3$s \n", sizeA,sizeB,sizeC);
			square();
		}
		else {
			System.out.printf("Треугольник с сторонами %1$s, %2$s, %3$s не существует \n", sizeA,sizeB,sizeC );
		}
	}
	
	public void square() {
			int halfPerimeter = (sizeA + sizeB + sizeC) / 2;
			double squareTriangle = Math.sqrt(halfPerimeter * (halfPerimeter - sizeA) * (halfPerimeter - sizeB) * (halfPerimeter - sizeC));
			System.out.printf("Площадь треугольника %.4f \n", squareTriangle);
	}
}