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java记——8.13**坑爹的缺省包

2015-11-04 19:06 381 查看

问题描述：

Design a class named Location for location a maximal value and its location in a two-dimensional array,The class contains public data fields row,column,and maxValue that store the maximal value and its indices in a two dimensional array with row
and column as int type and maxValue as double type.

Write the following method that returns the location of the largest element in a two-dimensional array.
public static Location locateLargest（double[][] a)
The return value is an instance of Location.Write a test program that prompts the user to enter a two-dimensional array and displays the location of the largest element in the array.
程序代码：

import java.util.Scanner;
public class Lll {
public static void main(String[] args){
System.out.println("Enter the number of rows and column columns of the array:");
Scanner input=new Scanner(System.in);
int row=input.nextInt();
int column=input.nextInt();
double[][] a=new double[row][column];
System.out.println("Enter the array:");
for(int i=0;i<row;i++){
for(int j=0;j<column;j++){
a[i][j]=input.nextDouble();
}
}
Location location=new Location();
Location.Locationlargest(a);
System.out.println("The location of the largest element is  "+location.setmax()+" at ("+location.setrow()+", "+location.setcolumn()+")");

}
static class Location{
public static int row;
public static int column;
public static double max;
int setrow(){
return row;
}
int setcolumn(){
return column;
}
double setmax(){
return max;
}
public static Location Locationlargest(double[][] a){
row=0;
column=0;
max=0;
for(int i=0;i<a.length;i++){
for(int j=0;j<a[i].length;j++){
if(a[i][j]>max){
max=a[i][j];
row=i;
column=j;
}
}
}
return null;
}
}
}

运行结果：

Enter the number of rows and column columns of the array:

3 3
Enter the array:
1 2 1
0 0 0
0 0 0
The location of the largest element is  2.0 at (0, 1)

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