Create boundarymatrix.java

boundarymatrix.java

@@ -0,0 +1,98 @@
+import java.util.*;
+class boundary
+{
+    public static void main(String args[])
+    {
+        int i=0,j=0,s=0,s1=0,x=0,y=0;
+        Scanner SC=new Scanner(System.in);
+        System.out.println("Enter the no.of rows:");
+        int M=SC.nextInt();
+        System.out.println("Enter the no.of columns:");
+        int N=SC.nextInt();
+        if(M<=2||N>=9)
+        {
+            System.out.println("out of range:");
+            return;
+        }
+        int a[][]=new int[M][N];
+        int b[][]=new int[M][N];
+        int t[]=new int[M*N];
+        System.out.println("Enter elements of matrix:");
+        for(i=0;i<M;i++)
+        {
+            for( j=0;j<N;j++)
+            {
+                a[i][j]=SC.nextInt();
+            }
+        }
+        System.out.println("the original matrix:");
+        for(i=0;i<M;i++)
+        {
+            for(j=0;j<N;j++)
+            {
+                System.out.print(a[i][j]+"\t");
+            }
+            System.out.println();
+        }
+        for(i=0;i<M;i++)
+        {
+            for(j=0;j<N;j++)
+            {
+                if(i==0||j==0||i==M-1||j==N-1)
+            s=s+a[i][j];
+        }
+    }
+        System.out.println("sum of boundary elements(unsorted):"+s);
+        for(i=0;i<M;i++)
+        {
+            for(j=0;j<N;j++)
+            {
+                t[x++]=a[i][j];
+            }
+        }
+        for(i=0;i<x-1;i++)
+        {
+            for(j=0;j<x-i-1;j++)
+            {
+                if(t[j]<t[j+1])
+                {
+                    int temp=t[j];
+                    t[j]=t[j+1];
+                    t[j+1]=temp;
+                }
+            }
+        }
+        for(i=0;i<M;i++)
+        {
+            for(j=0;j<N;j++)
+            {
+                b[i][j]=t[y++];
+            }
+        }
+        System.out.println("the sorted matrix:");
+        for(i=0;i<M;i++)
+        {
+            for(j=0;j<N;j++)
+            {
+                System.out.print(b[i][j]+"\t");
+            }
+            System.out.println();
+        }
+        for(i=0;i<M;i++)
+        {
+            for(j=0;j<N;j++)
+            {
+        if(i==0||j==0||i==M-1||j==N-1)
+        {
+            s1=s1+b[i][j];
+        }
+    }
+}
+        System.out.println("sum of boundary elements(sorted):"+s1);
+    }
+}
+
+
+
+
+