Merge pull request #76 from arpitjain22june/patch-8

Create WavePrintRowWise.java

Author: srsandy

Practice Problems/Arrays/WavePrintRowWise/Readme.md

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+Take as input a two-d array. Wave print it row-wise.
+
+Input Format
+Two integers M(row) and N(column) and further M * N integers(2-d array numbers).
+
+Constraints
+Both M and N are between 1 to 10.
+
+Output Format
+All M * N integers are seperated by commas with 'END' written in the end(as shown in example).
+
+Sample Input
+4 4
+11 12 13 14
+21 22 23 24
+31 32 33 34
+41 42 43 44
+Sample Output
+11, 12, 13, 14, 24, 23, 22, 21, 31, 32, 33, 34, 44, 43, 42, 41, END

Practice Problems/Arrays/WavePrintRowWise/WavePrintRowWise.java

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+import java.util.Scanner;
+
+public class WavePrintRowWise {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Scanner sc = new Scanner(System.in);
+		int n = 0, m = 0;
+		if (sc.hasNext()) {
+			m = sc.nextInt();
+		}
+		n = sc.nextInt();
+		int[][] arr = new int[m][n];
+		for (int i = 0; i < m; i++) {
+			for (int j = 0; j < n; j++) {
+				arr[i][j] = sc.nextInt();
+			}
+		}
+		for (int i = 0; i < m; i++) {
+			if (i % 2 == 0) {
+				for (int j = 0; j < n; j++) {
+					System.out.print(arr[i][j] + ", ");
+				}
+			} else {
+				for (int j = n - 1; j >= 0; j--) {
+					System.out.print(arr[i][j] + ", ");
+				}
+			}
+
+		}
+		System.out.println("END");
+	}
+
+}