Java Program to find Eigen Values of 3x3 matrix

/**Eigen Values of a 3*3 matrix**/
package sem4;
import java.util.Scanner;
public class EigenValues {
int A[][]=new int[3][3];
final int N=3;
int s1=0,s2=0,s3=0;
void calcs1(){
s1=0;
for(int i=0;i<N;i++){
s1+=A[i][i];
}
}

void calcs2(){
s2=0;
int x=1,y=2;
for(int i=0;i<N;i++){
s2+=A[x][x]*A[y][y]-A[x][y]*A[y][x];
if(i==0)
x=0;
else if(i==1)
y=1;
}
}






public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
EigenValues e1=new EigenValues();
for(int i=0;i<e1.N;i++)
for(int j=0;j<e1.N;j++)
e1.A[i][j]=sc.nextInt();
e1.calcs2();

}

}

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