How would I get just the second row to print in this 4x4 array?
double [][] table = new double[4][4];
for(int i = 0; i < table.length; i++){
for(int j = 0; j < table[i].length; j++)
table[i][j] = (Math.random() * 10);
}
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You want to print this array after storing the data?Nigam Patro– Nigam Patro2015-12-18 11:13:52 +00:00Commented Dec 18, 2015 at 11:13
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Yes, but just what's stored in the second rowlobolb12– lobolb122015-12-18 11:14:29 +00:00Commented Dec 18, 2015 at 11:14
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I know how to print the entire array, I'm just having problems with the logic on specifically getting just a specific rowlobolb12– lobolb122015-12-18 11:15:11 +00:00Commented Dec 18, 2015 at 11:15
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Do you want just the fourth row or is it the fourth COLUMN you want?DevilsHnd - 退した– DevilsHnd - 退した2015-12-18 11:23:57 +00:00Commented Dec 18, 2015 at 11:23
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I need to just print the rowlobolb12– lobolb122015-12-18 11:33:13 +00:00Commented Dec 18, 2015 at 11:33
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3 Answers
Use this
for(int j = 0; j < table[1].length; j++)
System.out.print(table[1][j]+" - ");
Comments
Use this
// table[0] == 1st row
// table[1] == 2nd row
// etc..
for(int i = 0; i < table[1].length; i++)
System.out.println(table[1][i]); // Print each item of the 2nd row
answered Dec 18, 2015 at 11:14
Mohammed Aouf Zouag
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1 Comment
lobolb12
This did the trick. I just needed to remove the second for loop
Depending on the usage, you may want to use a method to print a specific row. Something like this
public void printRow(int r){
for(int i=0; i<table[r-1].length; i++){
if(i>0){
System.out.print(", ");
}
System.out.print(table[r-1][i]);
}
}
In this example, you would call printRow(2); when you want to print the 2nd row.
