Hi Friend,

Transpose of matrix:

import java.util.*;

public class Transpose {
        public static void main(String[] args) throws Exception {
                int rows, cols;
                int[][] matrix, tmatrix;
                Scanner input = new Scanner(System.in);
                System.out.print("Enter number of rows: ");
                rows = input.nextInt();
                System.out.print("Enter number of columns: ");
                cols = input.nextInt();
                matrix = new int[rows][cols];
                tmatrix = new int[cols][rows];
                System.out.println("Enter elements for Matrix");
                for (int i = 0; i < rows; i++) {
                        for (int j = 0; j < cols; j++) {
                                matrix[i][j] = input.nextInt();
                        }
                }
                for (int i = 0; i < rows; i++) {
                        for (int j = 0; j < cols; j++) {
                                tmatrix[i][j] = matrix[j][i];
                        }
                }
                System.out.println("Matrix is:");
                for (int i = 0; i < rows; i++) {
                        for (int j = 0; j < cols; j++) {
                                System.out.print(matrix[i][j] + " ");
                        }
                        System.out.println();
                }
                System.out.println("Its transpose is: ");
                for (int i = 0; i < cols; i++) {
                        for (int j = 0; j < rows; j++) {
                                System.out.print(tmatrix[i][j] + " ");
                        }
                        System.out.println();
                }
        }
}

Thanks

Hi Friend,

Denominations of Number:

import java.util.*; 
class FindDenomination{
    public static void main(String arg[]) throws Exception {
        Scanner input=new Scanner(System.in);
        String get_value;
        int five=0,ten=0,twenty=0,fifty=0,hundred=0, fivehundred=0,thousand=0;
        System.out.print("Enter a number: "); 
        int number=input.nextInt();
        thousand = number / 1000;
        number = number % 1000; 

        fivehundred = number / 500;
        number = number % 500; 

        hundred = number / 100;
        number = number % 100;

        fifty = number / 50; 
        number = number % 50;

        twenty = number / 20; 
        number = number % 20; 

        ten = number / 10;
        number = number % 10;

        five = number / 5;
        number = number % 5;

        System.out.println(" Number of 1000 denomination = " + thousand); 
        System.out.println(" Number of 500  denomination = " + fivehundred);
        System.out.println(" Number of 100  denomination = " + hundred);
        System.out.println(" Number of 50   denomination = " + fifty);
        System.out.println(" Number of 20   denomination = " + twenty);
        System.out.println(" Number of 10   denomination = " + ten);
        System.out.println(" Number of 5    denomination = " + five);
         }
        }

Thanks

Hi Friend,

A union B:

import java.util.*;

public class SetsUnion {
public static void main(String[] args) {

Set a = new HashSet();
a.add(1);
a.add(2);
a.add(3);

Set b = new HashSet();
b.add(2);
b.add(3);
b.add(4);

Set s=new HashSet(a);
s.addAll(b);
System.out.println("Set A: "+a);
System.out.println("Set B: "+b);
System.out.println();
System.out.println("A U B is: "+s);
}
}

Thanks

**Hi Friend, This is the Simple version of above Transpose program ( using single array variable )**

/* author Udhayakumar date 18-12-2010*/

import java.util.Scanner;

class Transpose {

 public static void main(String []ar)
 {
    int rows,cols;
    int[][] matrix;
    Scanner input = new Scanner(System.in);
    System.out.println("Enter the Number of Rows");
    rows = input.nextInt();
    System.out.println("Enter the Number of Columns");
    cols = input.nextInt();
    matrix = new int[rows][cols];
    System.out.println("Enter the Input for matrix");

    for(int i = 0;i<rows;i++)
        for(int j=0;j<cols;j++)
            matrix[i][j] = input.nextInt();

    System.out.println("The matrix is : ");
    for(int i = 0;i<rows;i++)
    {
        for(int j=0;j<cols;j++)
        {
            System.out.print(matrix[i][j]+"  ");
        }
        System.out.println();
    }
    System.out.println("The Transpose matrix is : ");
    for(int i = 0;i<rows;i++)
    {
        for(int j=0;j<cols;j++)
        {
                    System.out.print(matrix[j][i]+"  ");
        }
        System.out.println();
    }

}

}