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UpperTriangularMatrix.java

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import java.io.*;

public class UpperTriangularMatrix {

public static void main() throws IOException {

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

System.out.println("ENTER THE NUMBER OF ROWS =");

int m = Integer.parseInt(br.readLine());

System.out.println("ENTER THE NUMBER OF COLUMNS =");

int n = Integer.parseInt(br.readLine());

int arr[][] = new int[m][n];

System.out.println("ENTER THE ELEMENTS=");

for (int i = 0; i < m; i++) {

for (int j = 0; j < n; j++) {

arr[i][j] = Integer.parseInt(br.readLine());

}

}

System.out.println("MATRIX IS=");

for (int i = 0; i < m; i++) {

for (int j = 0; j < n; j++) {

System.out.print(arr[i][j] + " ");

}

System.out.println();

}

for (int i = 0; i < m; i++) {

for (int j = 0; j < n - i; j++) {

System.out.print(arr[i][j] + " ");

}

System.out.println();

}

}

}