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Fill two dimensional array

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answered on May 5, 2021 Popularity 5/10 Helpfulness 1/10

answer Fill two dimensional array

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Fill two dimensional array

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// To fill two dimenional array with some simbol, e.g. "*"
Scanner scanner = new Scanner(System.in);
int number = scanner.nextInt();

String[][] matrix = new String[number][number];

for (String[] strings : matrix) {
    Arrays.fill(strings, ".");
}

// To modify only middle and/or diagonales:
for (int i = 0; i < matrix.length; i++) {
    for (int j = 0; j < matrix[i].length; j++) {
        if (i == number / 2) {
            matrix[i][j] = "*";
        }
        if (j == number / 2) {
            matrix[i][j] = "*";
        }
        if (i == j) {
            matrix[i][j] = "*";
        }
        if (i == number - j - 1) {
            matrix[i][j] = "*";
        }
    }
}

/*

Result:
* . . * . . * 
. * . * . * . 
. . * * * . . 
* * * * * * * 
. . * * * . . 
. * . * . * . 
* . . * . . * 

*/

Popularity 5/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: dimensional fill java

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Contributed on Jul 13 2022

0 Answers Avg Quality 2/10

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fill two dimensional array c++

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//this way you can fill your array row by row
for (int i = 0; i < row; i++){
	for (int j = 0; j < column; j++){
		cin >> x;
        array[i][j] = x;
	}
}

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

//this way you can fill your array column by column

for (int i = 0; i < column; i++){
	for (int j = 0; j < row; j++){
		cin >> x;
        array[i][j] = x;
	}
}

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

Popularity 8/10 Helpfulness 3/10 Language cpp

Source: Grepper

Tags: c++ fill dimensional

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Contributed on May 21 2022

KeWols

0 Answers Avg Quality 2/10

Fill 2-dimensional array with value

Comment

int a[100000][100000];
std::fill((int*)a,(int*)a+sizeof(a)/sizeof(int),0);

Popularity 6/10 Helpfulness 2/10 Language cpp

Source: stackoverflow.com

Tags: c++ fill

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Contributed on May 05 2021

Amused Ant

0 Answers Avg Quality 2/10

Fill two dimensional array

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Fill two dimensional array

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