How can I convert the ints in a 2d array into chars, and strings? (seperately)
If I copy ints to a char array i just get the ASCII code.
For example:
public int a[5][5]
//some code
public String b[5][5] = public int a[5][5]
Thanks
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4Your question isn't clear. Please give sample input and required output data.Jon Skeet– Jon Skeet2010-10-27 13:43:13 +00:00Commented Oct 27, 2010 at 13:43
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You can have only one char in cell. How do you want to make strings from it? Which direction?Hooch– Hooch2010-10-27 13:55:03 +00:00Commented Oct 27, 2010 at 13:55
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just instead of having an int in a cell, replace it with a char(or string). E.G. [0][0] = 5 as an int converted to [0][0] = 5 as a char. Justing replacing the int values with the char or string equivalent. I am hoping to replicate the int array as a char array and a string array.user476145– user4761452010-10-27 13:57:42 +00:00Commented Oct 27, 2010 at 13:57
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5 Answers
This question is not very well-phrased at all. I THINK what you're asking is how to convert a two-level array of type int[][] to one of type String[][].
Quite frankly, the easiest approach would simply leave your array as-is... and convert int values to String's when you use them:
Integer.toString(a[5][5]);
Alternatively, you could start with a String[][] array in the first place, and simply convert your int values to String when adding them:
a[5][5] = new String(myInt);
If you really do need to convert an array of type int[][] to one of type String[][], you would have to do so manually with a two-layer for() loop:
String[][] converted = new String[a.length][];
for(int index = 0; index < a.length; index++) {
converted[index] = new String[a[index].length];
for(int subIndex = 0; subIndex < a[index].length; subIndex++){
converted[index][subIndex] = Integer.toString(a[index][subIndex]);
}
}
All three of these approaches would work equally well for conversion to type char rather than String.
Comments
Your code must basically go through your array and transform each int value into a String. You can do this with the String.toString(int) method.
You can try that :
String[][] stringArray = new String[a.length][];
for(int i = 0; i < a.length; i++){
stringArray[i] = new String[a[i].lenght];
for(int j = 0; j < a[i].length; j++){
stringArray[i][j] = Integer.toString(a[i][j]);
}
}
Comments
If you want the int number as a string then you can use the Integer.toString() function.
b[1][1] = Integer.toString(a[1][1]);
Comments
String [][]b = new String[a.length][];
for(int i=0; i<a.length; i++) {
int [] row = a[i];
b[i] = new String[row.length];
for(int j=0; j<row.length; j++) {
b[i][j] = Integer.toString(row[j]);
}
}
Comments
To convert a 2D array into String you can use Arrays.deepToString(stringArr).
