/**********************************************

NAME=AKANKSHA SHARMA

CLASS= 2ND YEAR SEC A

EN NO. = 220362

PRG NO. / NAME= 14/ SUM OF ALL ELEMENTS OF 1-D ARRAY

***********************************************/

import java.util.*;
class Arrays{
int a[];
int sum;
Arrays(){
a = new int[6];
sum = 0;
}
void input(){
System.out.println("Enter array elements");
Scanner sc = new Scanner(System.in);
for(int i=0;i<6;i++){
a[i] = sc.nextInt();
}
System.out.println();
}
void proc(){
for(int i=0;i<6;i++){
sum = sum + a[i];
}
}
void output(){
System.out.println(sum);
}
}
public class sum1dArray {
public static void main(String args[]){
Arrays a1 = new Arrays();
a1.input();
a1.proc();
a1.output();
}
}
/*******************************************************

NAME= AKANKSHA SHARMA

CLASS= 2ND YEAR SEC A

EN NO. = 220362

PRG NO. / NAME= 15/ REVERSE OF 1-D ARRAY USING SECOND ARRAY

******************************************************/

import java.util.*;
class Reverse{
int a[] = new int[5];
int b[] = new int[5];
int j = a.length;

void inpt(){
System.out.println("Enter array elements");
Scanner sc = new Scanner(System.in);
for(int i=0;i<a.length;i++){
a[i] = sc.nextInt();
}
}
void rev(){
for(int i=0;i<a.length;i++){
b[j-1] = a[i];
j=j-1;
}
}
void outpt(){
for(int i=0;i<a.length;i++){
System.out.print(b[i] + " ");
}

}
public class reverse1dArray {
public static void main(String[] args) {
Reverse r = new Reverse();
r.inpt();
r.rev();
r.outpt();
}

}
/*******************************************************

NAME=AKANKSHA SHARMA

CLASS= 2ND YEAR SEC A

EN NO. = 220362

PRG NO. / NAME= 16/ SUM OF TWO MATRICES OF SIZE 3X3

******************************************************/

import java.util.*;
class Matrix{
int a[][] = new int[3][3];
int b[][] = new int[3][3];
int c[][] = new int[3][3];

void input(){
System.out.println("Enter first array");
Scanner sc = new Scanner(System.in);
for(int i=0;i<3;i++){
for(int j=0;j<3;j++){
a[i][j] = sc.nextInt();
}}
System.out.println("Enter second array");
for(int i=0;i<3;i++){
for(int j=0;j<3;j++){
b[i][j] = sc.nextInt();}}
System.out.println();}

void sum(){
for(int i=0;i<3;i++){
for(int j=0;j<3;j++){
c[i][j] = a[i][j]+b[i][j];}}}

void output(){
for(int i=0;i<3;i++){
for(int j=0;j<3;j++){
System.out.print(c[i][j] + " ");}
System.out.println();}}}

public class MatrixSum {

NAME=AKANKSHA SHARMA

CLASS= 2ND YEAR SEC A

EN NO. = 220362

PRG NO. / NAME= 17/ CLASS FOR 2-D ARRAY WITH FOLLOWING METHODS
1. input method
2. do the sum of each row and print it
3. do the sum of each column and print it
4. do the sum of diagonal elements.

******************************************************/

class Sums{
int a[][] = new int[3][3];
int rows = a.length;
int cols = a[0].length;
void input(){
System.out.println("Enter array elements");
Scanner sc = new Scanner(System.in);
for(int i=0;i<3;i++){
for(int j=0;j<3;j++){
a[i][j] = sc.nextInt();
}
}
}
void rowsum(){
for(int i=0;i<rows;i++){
int sumrows = 0;
for(int j=0;j<cols;j++){
sumrows = sumrows + a[i][j];
}
System.out.println("Sum of " + (i+1) +" row: " + sumrows);
}
System.out.println();
}
void colsum(){
for(int j=0;j<cols;j++){
int sumcols = 0;
for(int i=0;i<rows;i++){
sumcols = sumcols + a[i][j];
}
System.out.println("Sum of " + (j+1) +" column: " + sumcols);
}
System.out.println();
}
void diagsum(){
int sum = 0;
for (int i=0;i<3;i++){
 for(int j=0;j<3;j++){
if(i == j){
sum = sum + a[i][j];
}}}
System.out.println("Sum of diagonal elements is: " + sum);
}
}
public class Array2dSum {
public static void main(String[] args) {
Sums s1 = new Sums();
s1.input();
s1.rowsum();
s1.colsum();
s1.diagsum();
}
}
/*******************************************************

NAME=AKANKSHA SHARMA

CLASS= 2ND YEAR SEC A

EN NO. = 220362

PRG NO. / NAME= 18/ MATRIX MULTIPLICATION

*******************************************************/

import java.util.*;
class Mul{
int a[][] = new int [3][3];
int b[][] = new int[3][3];
int c[][] = new int[3][3];
void input(){
Scanner sc = new Scanner(System.in);
System.out.println("Enter first array Elements");
for(int i=0;i<3;i++){
for(int j=0;j<3;j++){
a[i][j] = sc.nextInt();
}
}
System.out.println("Enter second array Elements");
for(int i=0;i<3;i++){
for(int j=0;j<3;j++){
b[i][j] = sc.nextInt();}
}
}
void multiply(){
for(int i=0;i<3;i++){
for(int j=0;j<3;j++){
c[i][j] = 0;
for(int k=0;k<3;k++){
c[i][j] = c[i][j] + (a[i][k] * b[k][j]);}}
System.out.println();
}}
void output(){
for(int i=0;i<3;i++){
for(int j=0;j<3;j++){
System.out.print(c[i][j] + " ");}
System.out.println();}
}}
public class MatrixMul {
public static void main(String[] args) {
Mul m1 = new Mul();
 m1.input();
m1.multiply();
m1.output();
}}
/*******************************************************

NAME=AKANKSHA SHARMA

CLASS= 2ND YEAR SEC A

EN NO. = 220362

PRG NO. / NAME= 19/ TRANSPOSE OF GIVEN MATRIX

******************************************************/
import java.util.*;
class Matrix{
int a[][] = new int[3][3];
int b[][] = new int[3][3];
void input(){
System.out.println("Enter array elements");
Scanner sc = new Scanner(System.in);
for(int i=0;i<3;i++){
for(int j=0;j<3;j++){
a[i][j] = sc.nextInt();
}
}
System.out.println();
}
void trans(){
for(int i=0;i<3;i++){
for(int j=0;j<3;j++){
b[i][j] = a[j][i];
}
}
}
void output(){
for(int i=0;i<3;i++){
for(int j=0;j<3;j++){
System.out.print(b[i][j] + " ");
}
System.out.println();
}
}
}
public class Transpose {
public static void main(String[] args) {
Matrix m2 = new Matrix();
m2.input();
m2.trans();
m2.output();
}
}