Thread: 2 dime array with following methods

1. reads and stores
2. average high
3. average low
4.index high
5. index low

so far i have...
import java.util.Scanner;

public class Array
{
public static void main( String [] args )
{
double [] [] temp = { { 43, 3 },
{ 50, 6 },
{ 66, 32},
{ 68, 40},
{ 75, 55},
{ 88, 50},
{ 90, 66},
{ 98, 65},
{ 85, 50},
{ 76, 43},
{ 65, 42},
{ 52, 15} };


Scanner scan = new Scanner( System.in );
double [] getData = new double[12];
for ( int i = 0; i < temp.length; i++ )
{
System.out.print( "Enter temp for month "
+ ( i + 1 ) + "\t" );
getData[i] = scan.nextDouble( );
}

int indexLowTemp = 0;

for ( int i = 1; i < temp.length; i++ )
{
if ( temp[i] < temp[indexLowTemp] )
indexLowTemp = i;
}

System.out.println( " The smallest int appeared at index >" +
indexLowTemp );


int indexHighTemp = 0;

for ( int i = 1; i < temp.length; i++ )
{
if ( temp[i] > temp[indexHighTemp] )
indexHighTemp = i;
}

System.out.println( " The largest int appeared at index >" +
indexHighTemp );

double averageHigh = 0;
for (int i=0; i<temp[i].length; i++)
{
double averageLow = 0;
for (int j = 0; j < temp[j].length; j++)
{
averageHigh += temp[i];
}
averageHigh = averageHigh/temp[i].length;
totalAverage += averageHigh;
}
totalAverage = totalAverage/temp.length;

}

with this as my major problem right now Array2.java:38: error: bad operand types for binary operator '<'
if ( temp[i] < temp[indexLowTemp] )

well I have found the min and max of an index with the < and > in a single dimension array. and I need to get the min and max of the array. with this array all the bigger number are in column 0 while the lower ones are in column 1 in not sure if I do it by the whole array or single columns

ok i tried
if ( temp[i] < temp[0][1] )
indexLowTemp = i;
and if ( temp[0][1] < temp[indexLowTemp] )
indexLowTemp = i;

and still get the same error

am i missing a line of code ? or is what i have correct just not set up correct

ok so i think i got a little further with
import java.util.Scanner;

public class Array2
{
public static void main( String [] args )
{
double [] [] temp = { { 43, 3 },
{ 50, 6 },
{ 66, 32},
{ 68, 40},
{ 75, 55},
{ 88, 50},
{ 90, 66},
{ 98, 65},
{ 85, 50},
{ 76, 43},
{ 65, 42},
{ 52, 15} };



double indexLowTemp = temp[0][1];

for ( int i = 1; i > temp.length; i++ )
{

if ( temp[0][1] > indexLowTemp )
indexLowTemp = i;

}
System.out.println( " The smallest int appeared at index >" +
indexLowTemp );
}
}
it needs to ouput the lowest temp in the array which would be 3 at row 0 coulmn 1 and i cant seem to get that to output and im not even sure what index that is considered

ok but I'm out putting 3 instead of [0] [1] with that last code I entered. in a proper output for a array with 12 rows and 2 columns would be ?

my question is first why with that code it says the index is 3 and not [0][1]

I wish I could but I'm doing this from a iPhone right now I don't have access to a comp it's te code used in entry #9. I can't seem to get the indexes to show instead of the elements

1. reads and stores
2. average high
3. average low
4.index high
5. index low

with all these methods needed for this program should i set up a declared class file and then a seperate program to test? considering one of the methods i am going to use a .get

	double [] [] temp =	{  { 43, 3 },
									{ 50, 6 },
									{ 66, 32},
									{ 68, 40},
									{ 75, 55},
									{ 88, 50},
									{ 90, 66},
									{ 98, 65},
									{ 85, 50},
									{ 76, 43},
									{ 65, 42},
									{ 52, 15} };
 
 
 
 
		int indexLowTemp = 0;
		double temp_low = Double.MAX_VALUE;
		for (int i = 0; i < temp.length; i++)
			if (temp[i][1] < indexLowTemp)
			{
				indexLowTemp = i;
				temp_low = temp[i][1];
			}
		System.out.println("The smallest int appeared at index " + indexLowTemp);
 
 
 
		int indexHighTemp = 0;
		double temp_high = Double.MAX_VALUE;
		for (int i = 0; i < temp.length; i++)
			if (temp[i][1] > indexHighTemp)
			{
				indexHighTemp = i;
				temp_high = temp[i][1];
			}
		System.out.println("The highest int appeared at index " + indexHighTemp);
 
 
		}
 
 
 
	}

this is just giving me either the first index or that last index , not actually finding the min or max. and yes i need a seperate class program

well cuz i need to use a .get somewhere in my program and
isnt it comparing indexLow and indexHigh to the numbers i have in my array ?
cuz i would think it would need to be
if(temp[i][1] < temp [indexLowTemp)

but that doest even compile

double [] [] temp =	 { { 43, 3 },
									{ 50, 6 },
									{ 66, 32},
									{ 68, 40},
									{ 75, 55},
									{ 88, 50},
									{ 90, 66},
									{ 98, 65},
									{ 85, 50},
									{ 76, 43},
									{ 65, 42},
									{ 52, 15} };
 
	String [] string = { "high", "low", };
			for( int i = 0; i < string.length; i++ )
			System.out.println( " string " + i + " : "
										+string[i] );
 
Scanner scan = new Scanner( System.in );
		int currentLow;
		do
		{
			System.out.print( "Enter 1 for low > " );
			currentLow = scan.nextInt( );
		}	while ( currentLow < 0 || currentLow > 1 );
 
		double indexLowTemp = temp[0][currentLow];
		for ( int i = 1; i > temp.length; i++ )
		{
			if ( currentLow < temp[i].length )
			{
				//update memberMaxBill if necessary
				if ( temp[i][currentLow] > indexLowTemp )
					indexLowTemp = temp[i][currentLow];
			}
 
		}
				System.out.println ( "\nThe min temp for "
									+ string[currentLow] + " is "
									+( indexLowTemp ) );
 
 
Scanner scan1 = new Scanner( System.in );
		int currentHigh;
		do
		{
			System.out.print( "Enter 0 for high > " );
			currentHigh = scan.nextInt( );
		}	while ( currentHigh < 0 || currentHigh > 1 );
 
		double indexHighTemp = temp[0][currentHigh];
		for ( int i = 1; i < temp.length; i++ )
		{
			if ( currentHigh < temp[i].length )
			{
				//update memberMaxBill if necessary
				if ( temp[i][currentHigh] > indexHighTemp )
					indexHighTemp = temp[i][currentHigh];
			}
 
		}
				System.out.println ( "\nThe max temp for "
									+ string[currentHigh] + " is "
									+( indexHighTemp ) );
 
 
 
 
 
 
 
		}
 
 
 
	}

ok i tried this at it seems to work but i am getting that actually temperature reading instead of the index

i want the value of the index but i have tried everything and either it gives me the value from the array or it will just output a 0