公共類問題{
公共靜態void main(String[] args){
int arrayA[][]={{1,2,3},
{4,5,6},
{7,8,9}};
int arrayB[][]={{1,2,3},
{4,5,6},
{7,8,9}};
int arrayC[][]= new int[3][3];
int arrayD[][]= new int[3][3];
int i,j,k;
for(I = 0;我& lt3;i++){
for(j = 0;j & lt3;j++){
arrayC[I][j]= arrayA[I][j]+arrayB[I][j];
for(k = 0;k & lt3;k++){
arrayD[I][j]+= arrayA[I][k]* arrayB[k][j];
}
system . out . print(arrayC[I][j]);
system . out . print(" ");
}
system . out . println();
}
system . out . println();
for(I = 0;我& lt3;i++){
for(j = 0;j & lt3;j++){
system . out . print(arrayD[I][j]);
system . out . print(" ");
}
system . out . println();
}
}
}