how to get absolute value of a 2D array

Question

I'm trying to get the largest value after getting the sums of the columns in a two-dimensional array? this is my method so far help me.

public static int AbsvalueFromAcolumn (int[][] array) {

int yarray[] = new int[array.length];

for (int x [] : array )
{
int count = 0;
for (int column : x)
{
count += Math.abs(array[column][x]);
}
yarray[x] = count;
}
int absValue = yarray[0];
for (int b : yarray )
{
if (yarray[b] > absValue ) {
absValue = yarray[b];}
}
return absValue;

Tried enhance loops and normal loops.
expecting the largest absolute value from the individual sums of the columns or rows. a corrected example would be great.
thanks in advance

Answer 1

I think you mixed up how for loop works with that of for-each loop (enhanced for loop). Try this and tell me how it goes.

P.S. For future posts, please attach a saved code link instead.

public class Program
{
public static int AbsValueFromAColumn (int[][] array)
{
int yarray[] = new int[array.length];
int index = 0; // for yarray

for (int row [] : array)
{
int sum = 0;
for (int column : row)
{
sum += Math.abs(column);//Math.abs(array[column][row]);
}
yarray[index++] = sum;//yarray[row] = count;
}
int absValue = yarray[0];
for (int b : yarray )
{
if(b > absValue)//if(yarray[b] > absValue)
{
absValue = b;//absValue = yarray[b];
}
}
return absValue;
}

public static void main(String[] args)
{
int[][] sample =
{
{1,-2,3,4,5},
{6,-7,8,9,10},
{10,100,20,40,-5},
{8,-45,74,77,-6},
{19,-20,15,30,42}
};
System.out.println(AbsValueFromAColumn(sample));
}
}

Answer 2

Can you save it as a code in Sololearn and share it here? That way, someone can help you...