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# Java Code for Regression

This java programming code is used to find the regression . You can select the whole java code by clicking the select option and can use it. When you click text, the code will be changed to text format. This java program code will be opened in a new pop up window once you click pop-up from the right corner. You can just copy, paste this java code and use it to find the regression .

```import java.util.*;
import java.lang.*;
class Correlation_coefficient
{
public static void main(String args[])
{
double nr=0,dr=0,slope,intercept,reg;
double xx[],xy[],yy[];
xx =new double[5];
xy =new double[5];
yy =new double[5];
double x[]={60,61,62,63,65},y[]={3.1,3.6,3.8,4.0,4.1};
double sum_y=0,sum_xy=0,sum_x=0,sum_xx=0,sum_x2=0;
int i,n=5;
for(i=0;i<n;i++)
{
xx[i]=x[i]*x[i];
yy[i]=y[i]*y[i];
}
for(i=0;i<n;i++)
{
sum_x+=x[i];
sum_y+=y[i];
sum_xx+= xx[i];
sum_xy+= x[i]*y[i];
}
nr=(n*sum_xy)-(sum_x*sum_y);
sum_x2=sum_x*sum_x;
dr=(n*sum_xx)-sum_x2;
slope=nr/dr;
String s = String.format("%.2f",slope);
slope = Double.parseDouble(s);
intercept=(sum_y- slope*sum_x)/n;
reg= intercept + (slope*64);
String s1 = String.format("%.2f",reg);
reg = Double.parseDouble(s1);
System.out.println("Slope: "+slope+"\nIntercept: "+intercept+"\nRegression: "+reg);
}
}```
##### Other Programming Codes
Online Calculator : Regression Calculator
Click on the select code link to copy and paste this free java program code for regression calculator.