Write a user defined function named upper_half() which takes a square two dimensional array, with size as argument and prints the upper half of the array.
e.g:
2 3 1 5 0 2 3 1 5 0
7 1 5 3 1 1 5 3 1
2 5 7 8 1 The output will be 7 8 1
0 1 5 0 1 0 1
3 4 9 1 5 5
7 1 5 3 1 1 5 3 1
2 5 7 8 1 The output will be 7 8 1
0 1 5 0 1 0 1
3 4 9 1 5 5
import java.util.Scanner;
class Upper_Half_of_Square_Matrix {
static void
input(int matrix[][], int n) {
int i;
System.out.println("Enter data in for ");
for (i = 0; i < n; i++) {
int j = 0;
String
str = new Scanner(System.in).nextLine();
Scanner
scn = new Scanner(str);
while
(scn.hasNext()) {
matrix[i][j++] = Integer.parseInt(scn.next());
}
}
}
static void
display(int matrix[][], int n) {
int i, j;
System.out.println("Your given square Matrix is ::");
for (i = 0; i < n; i++) {
for (j = 0; j < n; j++) {
System.out.print(matrix[i][j] + " ");
}
System.out.println();
}
}
static void
upper_half(int matrix[][], int n) {
int i, j;
System.out.println("Your Upper Half Matrix is ::");
for (i = 0; i < n; i++) {
for (j = 0; j < n; j++) {
if (i <= j) {
System.out.print(matrix[i][j]);
}
else {
System.out.print(" ");
}
}
System.out.println();
}
}
public static void
main(String[] args) {
int array[][] = new int[10][10];
System.out.println("Enter size of square matrix :");
int s = new Scanner(System.in).nextInt();
input(array, s);
display(array, s);
upper_half(array, s);
}
}
Output:
