在写程序的时候单元测试十分重要，下面是求数组最大值的代码实现和单元测试部分以及结果截屏

1 import java.util.Scanner; 2 public class Test { 3     public static void main(String[] args){ 4         int a[]={1,2,3,4,5,6}; 5         judge(Largest(a,6)); 6         int a2[]={9,4,0,2,5,10}; 7         judge(Largest(a2,6)); 8         int[] a3={000,-1,-88,3,000,999}; 9         judge(Largest(a3,6));10         int a4[]={};11         judge(Largest(a4,0));12         int[] a5=new int[5];13         judge(Largest(a5,5));14         while(1>0){15             System.out.println( "\n请输入数组的长度");16             Scanner sc2=new Scanner(System.in);17             int length=sc2.nextInt();18             int A[]=new int[length];19             System.out.println( "请输入一个数组");20             Scanner sc=new Scanner(System.in);21             for(int i=0;i
     
      max){35                 max=list[i];36             }37         }38         System.out.print( "\n"+max);39         return 1;40     }41     public static void judge(int i){42         if(i==0){43             System.out.print( "\n数组为空！");44         }45         else{46             System.out.print( "是最大值");47         }48     }49 }
     

可知在

这几个测试数组运行结果为：