arrays - exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: -1 at -


i have problem when massage box tell 

exception in thread "main" java.lang.arrayindexoutofboundsexception: -1 @ pla3d_2.tkmat<pla3d_2.java:509> @ pla3d_2.tkmat<pla3d_2.java:327>

below line of code reference

for line 327

 /***construction , overall stiffness matrix of  b mato (line 326)  tkmat(xyz,e1,p1,aj,psaig,aji,detjg,detjgg,gbg1,bmat,dep);(327)  /***introduction of boundary conditions (328)   fix(nb,n,nband,ix,iy,iz,u,v,w,ib,dtf,ux,uy,uz); (329)  /***solutions system of linear equations (330)

and

for line 509

 static void tkmat(double xyz[][],double e1[],double p1[],         double aj[][][],double psaig[][][],double aji[][][],double detjg[],         double detjgg[][],double gbg1[][][],double bmat[][],double dep[][]){         int l,l1,l2,l3,l4,l5,ie,je,it,jt,iit,jjt;         double aj11,aj12,aj13,aj21,aj22,aj23,aj31,aj32,aj33,detj,sum;         double gek1[][] = new double[6][nodel*3];         double gek2[][] = new double[nodel*3][nodel*3];         double gekg[][][] = new double[8][nodel*3][nodel*3];         double gek[][] = new double[nodel*3][nodel*3]; //      for(l=0;l<ne;l++){        for(l1=0;l1<nodel;l1++){         lc[3*l1][l]  =3*loc[l1][l]-2;         lc[3*l1+1][l]=3*loc[l1][l]-1;         lc[3*l1+2][l]=3*loc[l1][l];        }        for(l1=0;l1<nodel;l1++){          xyz[l1][0]=xx[loc[l1][l]-1]; [line 509]          xyz[l1][1]=yy[loc[l1][l]-1];          xyz[l1][2]=zz[loc[l1][l]-1];        }        for(l2=0;l2<8;l2++){          for(l1=0;l1<3;l1++){            for(l3=0;l3<3;l3++){              aj[l2][l1][l3]=0.0;              for(l4=0;l4<nodel;l4++){                aj[l2][l1][l3]=aj[l2][l1][l3]+psaig[l2][l1][l4]*xyz[l4][l3];              }            }          }        }

can me...thank in advance..:-)

apart fact code pretty ugly , nobody can understand what's going on, check 

at pla3d_2.tkmat<pla3d_2.java:509>

in stack trace. it's telling you trying set object array @ line 509 array has grown out of size - there's no more space in array.


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