Lessons1Exapmle3OOP

ActionWithTheVector

package com.gmail.kudr641.example3;

import java.util.Scanner;

public class ActionWithTheVector {
		
	public Vector3d[] createArrayVectors(){
		Scanner scanner = new Scanner(System.in);
		
		System.out.print("How many vectors needed?");
		int how = scanner.nextInt();
		
		Vector3d[] arrayVector = new Vector3d[how];
		for(int i = 0; i < how; i += 1){
			System.out.println("Input parameters " + (i + 1) + " vectors");
			
			System.out.print("x = ");
			int x = scanner.nextInt();
			
			System.out.print("y = ");
			int y = scanner.nextInt();
			
			System.out.print("z = ");
			int z = scanner.nextInt();
						
			arrayVector[i] = new Vector3d(x, y, z);
		}	
		scanner.close();
		return arrayVector;
	}
	
	public void printArrayVctor(Vector3d[] arrayVector){
		for(int i = 0; i < arrayVector.length; i += 1){
			System.out.println(arrayVector[i]);
		}
	}
	
	public void printSumAllVector(Vector3d[] arrayVector){
		for(int i = 0; i < arrayVector.length; i += 1){
			for(int j = i + 1; j < arrayVector.length; j += 1){
				System.out.println("Sum vector " + (i + 1) + " vector " + (j + 1) +  
						": " + sumVector(arrayVector[i], arrayVector[j]));
			}
		}
	}
	
	public void printScalarVector(Vector3d[] arrayVector){
		for(int i = 0; i < arrayVector.length; i += 1){
			for(int j = i + 1; j < arrayVector.length; j += 1){
				System.out.println("Scalar vector " + (i + 1) + " vector " + (j + 1) +
						": " + scalarVector(arrayVector[i], arrayVector[j]));
			}
		}
	}
	
	public void printCompositionVector(Vector3d[] arrayVector){
		for(int i = 0; i < arrayVector.length; i += 1){
			for(int j = i + 1; j < arrayVector.length; j += 1){
				System.out.println("Vector product vector " + (i + 1) + " vector " + (j + 1) +
						": " + compositionVector(arrayVector[i], arrayVector[j]));
			}
		}
	}
	
	private Vector3d sumVector(Vector3d one, Vector3d two){
		return new Vector3d(one.getX() + two.getX(), one.getY() + two.getY(),
				one.getZ() + two.getZ());	
	}
	
	private int scalarVector(Vector3d one, Vector3d two){				
		return one.getX() * two.getX() + one.getY() * two.getY() + one.getZ() * two.getZ();
	}
	
	private Vector3d compositionVector(Vector3d one, Vector3d two){
		return new Vector3d(one.getY() * two.getZ() - two.getY() * one.getZ(), 
				one.getX() * two.getZ() - two.getX() * one.getZ(),
				one.getX() * two.getY()- two.getY() * one.getY());
	}
	
}

Runner

package com.gmail.kudr641.example3;

public class Runner {

	public static void main(String[] args) {
		ActionWithTheVector awtv = new ActionWithTheVector();
		Vector3d[] arrayVector = awtv.createArrayVectors();
		awtv.printArrayVctor(arrayVector);
		
		awtv.printSumAllVector(arrayVector);
		awtv.printCompositionVector(arrayVector);
		awtv.printScalarVector(arrayVector);

	}

}

Vector3d

package com.gmail.kudr641.example3;

public class Vector3d {
	
	private int x;
	private int y; 
	private int z;
		
	public Vector3d(int x, int y, int z){
		this.x = x;
		this.y = y;
		this.z = z;		
		
	}

	@Override
	public String toString() {
		return "Vector3d [x=" + x + ", y=" + y + ", z=" + z + "]";
	}

	public int getX() {
		return x;
	}

	public int getY() {
		return y;
	}

	public int getZ() {
		return z;
	}
}