Calculates probability distribution for agent doing Right,Right,Right,Up,Up

Distribution.java

import java.text.DecimalFormat;


public class Distribution {
	static char map[][] = {
		{0,0,0,0},
		{0,1,0,0},
		{0,0,0,0}
	};
	//i is row
	//j is column
	static double[][] right(double[][] dist) {
		double[][] dist1 = new double[dist.length][dist[0].length];
		for(int i=0;i<dist1.length;i++){
			for(int j=0;j<dist1[i].length;j++){
				//try to go right
				if(j+1>=map[i].length || 
						map[i][j+1]==1)
					dist1[i][j] += dist[i][j]*0.8;
				else dist1[i][j+1] += dist[i][j]*0.8;
				//try to go down
				if(i-1<0 || map[i-1][j]==1) dist1[i][j] += dist[i][j]*0.1;
				else dist1[i-1][j] += dist[i][j]*0.1;
				//try to go up
				if(i+1>=map.length || map[i+1][j]==1) dist1[i][j] += dist[i][j]*0.1;
				else dist1[i+1][j] += dist[i][j]*0.1;
			}
		}
		return dist1;

	}
	static double[][] up(double[][] dist) {
		double[][] dist1 = new double[dist.length][dist[0].length];
		for(int i=0;i<dist1.length;i++){
			for(int j=0;j<dist1[i].length;j++){
				//try to go up
				if(i+1>=map.length || map[i+1][j]==1) dist1[i][j] += dist[i][j]*0.8;
				else dist1[i+1][j] += dist[i][j]*0.8;
				//try to go left
				if(j-1<0 || map[i][j-1]==1) dist1[i][j] += dist[i][j]*0.1;
				else dist1[i][j-1] += dist[i][j]*0.1;
				//try to go right
				if(j+1>=map[i].length || map[i][j+1]==1) dist1[i][j] += dist[i][j]*0.1;
				else dist1[i][j+1] += dist[i][j]*0.1;
			}
		}
		return dist1;

	}
	static DecimalFormat formatter = new DecimalFormat(".000");
	public static void main(String[] args) {
		double[][] dist = {
				{1.0,0,0,0},
				{0  ,0,0,0},
				{0  ,0,0,0}
		};
		dist = right(dist);
		dist = right(dist);
		dist = right(dist);
		dist = up(dist);
		dist = up(dist);
		for(int i=0;i<dist.length;i++){
			for(int j=0;j<dist[i].length;j++){
				System.out.print(formatter.format(dist[i][j]));
				System.out.print(' ');
			}
			System.out.println();
		}
	}

}