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HWJ13_2D Arrays
Start with the file below and use it to create the 5 methods described.
Advanced people MUST do at least 2 of the advanced.
/**
* Practice with 2 dimensional arrays
*
* @author (your name)
* @version (a version number or a date)
*/
public class HWJ13_2DArrays
{
static int table[][]=new int[5][3];
//the constructor fills in the 2d array with some values below:
public static void setup2DArray()
{
table[0][0]=6; table[0][1]=4; table[0][2]=0;
table[1][0]=19; table[1][1]=13; table[1][2]=53;
table[2][0]=44; table[2][1]=51; table[2][2]=27;
table[3][0]=30; table[3][1]=31; table[3][2]=30;
table[4][0]=24; table[4][1]=40; table[4][2]=10;
}
//have it print out the array in a nice fashion
public static void printArray()
{
setup2DArray(); //keep this line - sets up the array
//put code below
}
//replace every element with a random value
public static void fillWithRandom()
{
setup2DArray(); //keep this line - sets up the array
//put code below
}
//have it add x to every element in the table
public static void addToEach(int x)
{
setup2DArray(); //keep this line - sets up the array
//put code below
}
public static int findMaxValue()
{
setup2DArray(); //keep this line - sets up the array
//put code below
return 0;
}
public static double findAvgValue()
{
setup2DArray(); //keep this line - sets up the array
//put code below
return 0;
}
//ADVANCED
//find the sum of whatever row they put in (assume row is between 0 and 4 if they put in 2 it would be 72)
public static int findSumRow(int row)
{
setup2DArray(); //keep this line - sets up the array
//put code below
return 0;
}
//ADVANCED
//find the sum of whatever column they put in (assume col is between 0 and 2 [so if they put in 2 it would be 130)
public static int findSumCol(int col)
{
setup2DArray(); //keep this line - sets up the array
//put code below
return 0;
}
//ADVANCED - This method will add x to beginning of table, shifting all values over one (and losing the last value)
public static void addToBeginning(int x)
{
setup2DArray(); //keep this line - sets up the array
//put code below
}
//ADVANCED - This method will return the entire table as a 1d array
public static int[] createSingleDimension()
{
setup2DArray(); //keep this line - sets up the array
//put code below
return null;
}
public static int findRandom (int min, int max)
{
int range=max-min+1;
int rand=(int)(Math.random()*range)+min;
return rand;
}
}
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