Please help me with the errors in the program

Question

class a
{
public static void main(String []args)
{
//int arr[][];
int arr = new int[2][4];
arr[0][1]=1;
arr[0][2]=2;
arr[0][3]=3;
arr[0][4]=4;
arr[1][1]=11;
arr[1][2]=22;
arr[1][3]=33;
arr[1][4]=44;
for(int i=0;i<2;i++)
{
for(int j=0;j<5;j++)
{
System.out.println(arr[i][j]);
}
System.out.println("/n");
}

}

}

Answer 1

You cannot access arr[0][4] aswell as arr[1][4] You have to start both indexes at 0 so the biggest index for your second [] is 3.

Then you have to edit the condition of your inner for loop to j<4

Answer 2

class a
{
public static void main(String []args)
{
//int arr[][];
int[][] arr= {{1,2,3,4},{11,22,33,44}};

for(int i=0;i<2;i++)
{
for(int j=0;j<4;j++)
{
System.out.print(arr[i][j]);
}
System.out.println("\n");
}

}

}

Answer 3

I solved it thanks..

Answer 4

Array index should always start from 0 and the upper limit for an array index of array length 4 should be 3, not 4.

So,
arr[0][0] = 1;
arr[0][1] = 2;
.
.
.
The same goes to the second inner nested loop, it should be 4 because the index for the 2nd dimension index is 0-3.