单元测试

Calculate

package jsx2;

import java.util.Scanner;

public class Calculate {
        public static void main(String[] args){
            Calculate i =new Calculate();
            int Max = 0;
            int Max1 = 0;
            Scanner in=new Scanner(System.in);
            System.out.print("请输入数组的长度：");
            int j=in.nextInt();
            System.out.print("请依次输入数组：");
            int Arr[]=new int[j];
            for(int a = 0;a < j; a++){
                Arr[a]=in.nextInt();
            }
            int Arr1[]=new int [j];
            for(int a = 0; a < j; a++) {
                for(int b = 0; b < j; b++){
                    Arr1[b]=Arr[(b + a)%(j)];
                }
                Max=i.findMaxArr(Arr1);
                if(Max > Max1) {
                   Max1 = Max;
                }
            }
            System.out.print("最大的子数组和为"+Max1);
        }
        public int findMaxArr(int[] arr) {
            int Arr = 0;
            int MaxArr = 0;
            int c = arr.length;
            int Location1=0;
            int Location2=0;
            int a;

            for ( a = 0; a < c; a++) {
                Arr += arr[a];
                if (Arr < 0) {
                    Arr = 0;
                }
                if (Arr > MaxArr) {
                    MaxArr = Arr;
                  }
            }

           for(a = Location2; a >= 0; a--) {
              if(MaxArr-arr[a]==0) {
                   Location1 = a;
                   break;
              }
           }
            if (MaxArr == 0) {
                for ( a = 0; a < c; a++) {
                   if (a == 0) {
                       MaxArr = arr[a];
                   }
                    if (arr[a] > MaxArr) {
                        MaxArr = arr[a];
                    }
                  }
             }
            return MaxArr;
        }
    }

CalculateTest

package jsx2;

import static org.junit.Assert.*;

import org.junit.Before;
import org.junit.Test;

public class CalculateTest {
      private Calculate mcalculate;
        int[] Calculate = {-5,4,10,3,8};
        @Before
        public void setUp() throws Exception {
            mcalculate =new Calculate();
        }

        @Test
        public void testMain() throws Exception {

        }

        @Test
        public void testFindMaxArr() throws Exception {
            assertEquals(3, mcalculate.findMaxArr(Calculate), 0);

       

测试结果