Chapter5_Arrays_Ex11

import java.util.Scanner;
/*
    =====================================================
                   chapter 5: Arrays

      Ex11: Display matrix and max value placed in frame
    =====================================================
*/

public class MyProgram {
    public static void main(String[] args) {
        final int SIZE=10;
        int matrix[][]=new int[SIZE][SIZE];
        int row=0,col=0;
        int max;
        Scanner s=new Scanner(System.in);
        boolean loop=true;

        System.out.println("Enter rows: ");
        row=s.nextInt();

        while(row<=0 || row>SIZE){
            System.out.println("try again: ");
            row=s.nextInt();
        }

        System.out.println("Enter cols: ");
        col=s.nextInt();

        while(col<=0 || col>SIZE){
            System.out.println("try again: ");
            col=s.nextInt();
        }
        System.out.println("Enter "+row*col+" values: ");

        max=matrix[0][0];

        for(int i=0;i<row;i++){
            for(int j=0;j<col;j++){
                matrix[i][j]=s.nextInt();
                System.out.print(matrix[i][j]+"\t\t");
                if( (i==0 || i==row-1 ) && matrix[i][j]>max)
                    max=matrix[i][j];
                if( (i!=0 && i!=row-1 && j==0  ) && matrix[i][j]>max )
                    max=matrix[i][j];
                if( (i!=0 && i!=row-1 && j==col-1  ) && matrix[i][j]>max )
                    max=matrix[i][j];
            }
            System.out.println();
        }
        System.out.println("max frame value: "+max);
    }
}