Answered: For Java , Use for loops to fill in a…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

For Java , Use for loops to fill in a 2-D array called grid2 that contains
the following data (Note this is an array with 7 rows and 9 columns!):

// 1 2 3 4 5 6 7 8 9
// 9 8 7 6 5 4 3 2 1
// 1 2 3 4 5 6 7 8 9
// 9 8 7 6 5 4 3 2 1
// 1 2 3 4 5 6 7 8 9
// 9 8 7 6 5 4 3 2 1
// 1 2 3 4 5 6 7 8 9

Expert Solution

Code:

class Test99 {
public static void main(String args[]) {
int grid2[][] = new int[7][9];
int i, j;

for(i = 0; i < 7; i++) {
for(j = 0; j < 9; j++) {
if(i % 2 == 0)
grid2[i][j] = (j + 1);
else
grid2[i][j] = (9 - j);
}
}

for(i = 0; i < 7; i++) {
for(j = 0; j < 9; j++) {
System.out.print(grid2[i][j] + " ");
}
System.out.println();
}
}
}

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