JAVA数组
package com;

public class MatrixMultiply {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int i,j,k;
int a[][]={{1,3,-10},{5,-7,9}};
int b[][]={{3,5,7,-5},{3,7,-2,6},{4,2,-5,-8}};
int c[][]=new int [2][4];
for(i=0;i <2;i++){
for(j=0;i <4;j++){
c[i][j]=0;
for(k=0;k <3;k++)
c[i][j]+=a[i][k]*b[k][j];

}

}
System.out.println( "\nMatrix A: ");
for(i=0;i <2;i++){
System.out.print( "[ ");
for(j=0;j <3;j++)
System.out.print(a[i][j]+ " ");
System.out.println( "] ");


}
System.out.println( "\nMatrix B: ");
for(i=0;i <3;i++){
System.out.print( "[ ");
for(j=0;j <4;j++)
System.out.print(b[i][j]+ " ");
System.out.println( "] ");

}
System.out.println( "\nMatrix C: ");
for(i=0;i <2;i++){
System.out.print( "[ ");
for(j=0;j <4;j++)
System.out.print(c[i][j]+ " ");
System.out.println( "] ");
}
}


}

错误：

Exception in thread "main " java.lang.ArrayIndexOutOfBoundsException: 4
at com.MatrixMultiply.main(MatrixMultiply.java:16)



[解决办法]
for(j=0;i <4;j++){ 应该是for(j=0;j <4;j++){ 吧
[解决办法]
我顶你个肺,这种错误都没看见 哈哈....第二个for循环休内错了