Merge pull request #774 from Mayuri-cell/master

Transpose of a matrix

Author: smv1999

2D Arrays/transpose.java

@@ -0,0 +1,150 @@
+/*
+   Title : Find the transpose of the matrix .
+           User needs to provide the number of rows and columns .
+           And the user needs to provide the elements of the matrix .
+           User will get the transpose of the matrix .
+           i.e Row elements become the column elements and vice- versa .
+           **** Maximum 10 number of rows and columns can be only entered .
+   */
+import java.util.Scanner;
+import java.lang.*;
+class transpose
+{
+    final static int MAXLIMIT=10 ;
+    private int row;
+    private int col;
+    int i ,j ;
+    private double a[][];
+
+    transpose(int rows , int cols)      //Constructor
+    {
+        row=rows ;
+        col=cols ;
+        a=new double[row][col] ;
+
+    }
+
+    Scanner in=new Scanner(System.in);
+
+    public void get ()
+    {
+       System.out.println("\n Enter the elements : \n");
+        for(i=0;i<row;i++)
+        {
+            for(j=0;j<col;j++)
+            {
+                a[i][j]=in.nextDouble();
+            }
+        }
+
+    }
+
+    public void display ()
+    {
+        System.out.println( "\n Matrix A  " + row + " * " + col + " : \n") ;
+
+        for(i=0;i<row;i++)
+        {
+            for(j=0;j<col;j++)
+            {
+                System.out.print(a[i][j]+ "\t") ;
+            }
+            System.out.println("\n") ;
+        }
+    }
+
+     public void trans()
+    {
+        System.out.println( "\n\n The transpose of the given matrix : \n");
+        System.out.println( "\n Matrix AT " + col + " * " + row+ " : \n") ;
+
+        for(i=0;i<col;i++)
+        {
+            for(j=0;j<row;j++)
+            {
+                System.out.print(a[j][i]+ "\t") ;
+            }
+            System.out.println("\n") ;
+        }
+    }
+
+    public static void main (String [] args  )
+    {
+      int rows , cols ;
+      int opt;
+      Scanner in=new Scanner(System.in);
+      do
+      { opt=0;
+      System.out.println("\n Enter the total number of rows and columns respectively : \n");
+       rows=in.nextInt();
+       cols=in.nextInt();
+       if(rows>MAXLIMIT|| cols>MAXLIMIT|| rows<1||cols<1)
+       {
+           System.out.println("\n  Invalid enteries ! \n  Remember ,  Maximum limit of rows and columns is 10 .\n");
+           System.out.println("  Do you wish to continue ? \n  Press 1  if yes otherwise any to stop . \n");
+           opt=in.nextInt();
+       }
+
+       else
+       {
+
+       transpose A = new transpose(rows , cols);
+       A.get();
+       A.display();
+       A.trans();
+
+
+       }
+      } while(opt==1);
+
+    }
+
+}
+
+/*
+
+Enter the total number of rows and columns respectively :
+
+13
+1
+
+  Invalid enteries !
+  Remember ,  Maximum limit of rows and columns is 10 .
+
+  Do you wish to continue ?
+  Press 1  if yes otherwise any to stop .
+
+1
+
+ Enter the total number of rows and columns respectively :
+
+3
+2
+
+ Enter the elements :
+
+1
+2
+3
+5
+5
+5
+
+ Matrix A  3 * 2 :
+
+1.0     2.0
+
+3.0     5.0
+
+5.0     5.0
+
+
+ The transpose of the given matrix : \n");
+
+ Matrix AT 2 * 3 :
+
+1.0     3.0     5.0
+
+2.0     5.0     5.0
+
+*/