#include <stdio.h> #define ROWS 3 #define COLS 3 void matrixMultiply(int *mat1, int *mat2, int *result, int rows1, int cols1, int cols2) { int i, j, k; // Multiplying matrices for (i = 0; i < rows1; i++) { for (j = 0; j < cols2; j++) { *(result + i * cols2 + j) = 0; for (k = 0; k < cols1; k++) { *(result + i * cols2 + j) += *(mat1 + i * cols1 + k) * *(mat2 + k * cols2 + j); } } } } void displayMatrix(int *mat, int rows, int cols) { int i, j; // Displaying matrix for (i = 0; i < rows; i++) { for (j = 0; j < cols; j++) { printf("%d\t", *(mat + i * cols + j)); } printf("\n"); } } int main() { int mat1[ROWS][COLS] = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}}; int mat2[ROWS][COLS] = {{9, 8, 7}, {6, 5, 4}, {
write a program in java swaping two numbers
import java.util.*;
class sw{
int a,b,temp;
void swap(){
Scanner in=new Scanner( System.in);
System.out.println("enter the first value:");
a=in.nextInt();
System.out.println("enter the second value:");
b=in.nextInt();
temp=a;
a=b;
b=temp;
System.out.println(+"a= "+a+"b="+b);
}
}
class swap{
public static void main(String args[]){
sw pic=new sw();
pic.swap();
}
}
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