Supposedly i want to loop through the 2d array vertically for example given a 2*2 array
- a[0] a[0]
a[1] a[0]
a[2] a[0]
How do i output the values accordingly to the bold part
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2 Answers
for (int i = 0; i < a.length; i++) {
System.out.print(a[i][0]);
}
Of course, you can replace the 0 with any in-bounds column.
Comments
Since you want to loop through the array vertically by changing the first dimension, you need to have the variable in the inner for loop to be the first dimension like the code below:
for(int i=0; i<3; i++){
for(int j=0; j<3; j++){
System.out.println(a[j][i]);
}
}
