java 2dimensional array to string array
I have two dimensional array with values created as follows:
for(int i=0;i<2;i++)
{
for(int j=0;j<4;j++)
{
array[i][j]=e.getValues (r,c);
}
}
which will return :
array[0][0] => 16
array[0][1] => 11
array[0][2] => 7
array[0][3] => 6
array[1][0] => 10
array[1][1] => 7
array[1][2] => 6
array[1][3] => 6
how can i store these values as a single string in another 2d string array:
arrayValues[0][0] = > {"16,11,7,6"};
arrayValues[1]开发者_JAVA技巧[0] = > {"10,7,6,6"};
Any help would be appreciated. Thanks.
for(int i=0;i<2;i++)
{
for(int j=0;j<4;j++)
{
array[i][j]=e.getValues (r,c);
arrayValues[i][0] += array[i][j];
if(j < 3) {
arrayValues[i][0] += ',';
}
}
}
String[] s = new String[2];
String str = new String();
for(int i=0;i<2;i++)
{
str = "";
for(int j=0;j<4;j++)
{
array[i][j]=e.getValues (r,c);
str += Integer.toString(array[i][j]);
if(j != 3) str += ",";
}
s[i] = str;
}
String [] newValues = new String[array.length];
for(int i=0;i<newValues.length;i++) {
for(int j=0;j<array[i].length;j++) {
newValues[i]= java.util.Arrays.toString(array[i]);
}
}
You can test this by running:
for(int i=0;i<newValues.length;i++) {
System.out.println(newValues[i]);
}
Which will print out:
[16, 11, 7, 6]
[10, 7, 6, 6]
If the exact string format you described is necessary, you can change the function to:
for(int i=0;i<newValues.length;i++) {
for(int j=0;j<array[i].length;j++) {
newValues[i]= java.util.Arrays.toString(array[i])
.replace(" ", "").replace("[","{").replace("]","}");
}
}
Which will print out:
{16,11,7,6}
{10,7,6,6}
If your question is how to take array and convert it to one string that contains coma delimited values, do the following:
String[] arr = new String[] {1, 2, 3, 4}
String str = Arrays.asList(arr).toString(); // contians "[1, 2, 3, 4]"
String result = str.substring(1, str.length - 1); // contains "1, 2, 3, 4"
if you want to remove spaces after comas call replace(", ", "")
And please note that 2 dimensional array is an array of arrays, so you can easily apply this way to your 2 dimensional array be calling this code in loop.
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