CODEWITHSUNDEEP
javaarrays
e8oo
e8oo

Reputation: 3

Java put matrix element in array

i was trying to compare 2 variables in java but it gives me error and i cant figure it out.

I am reading matrix element then put it in temp then put that temp variable in an array. but it gives error when I try to put matrix element in temp and when I compare elements. error: array required, but float found. Anyone knows how to correct this ?

    public float[] toSortedArray()
  {
    float b[];
    float temp;
    int index=0;
    for(int i=1; i<=m; i++)
    {
      for(int j=1; j<=n; j++)
      {
        temp=a[m][n];
        b[index++]=temp;
      }
    }
      Arrays.sort(b);

        System.out.print("[");
      for(int z=0; z<(m*n)-1; z++)
      {
        System.out.print(b[z]+", ");
      } 
      System.out.print(b[(m*n)-1]+"]\n");
  }

Upvotes: 0

Views: 891

Answers (1)

SMA
SMA

Reputation: 37023

There are several things needed in this:

  1. Pass on the m, n parameter along with original 2D array like 

    public float[] toSortedArray(float[][] a, int m, int n)

  2. define b array as

    float b[] = new float[m*n];

  3. In for loop (one within i and j var) (both loop should start with 0) use

    temp=a[i][j];

instead of

    temp=a[m][n];

  1. At the end return b.

    return b;

Upvotes: 2

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