如何在序列中打印重复的数字，只有例子{10,20,20,20,20,10,30,30}输出将是20,30和count = 2 [英] How can I print repeated number in an array that occur in sequence only example {10, 20, 20, 20, 20, 10, 30, 30} output will be 20, 30 and count=2

问题描述

当我运行我的代码时，它为{10,20,20,20,30,30,10}提供了正确的输出，但没有为

{10,20,20,20,20帮助我获得所有测试用例的正确输出



我尝试了什么：

When i am running my code it gives correct output for {10,20,20,20,30,30,10} but not for
{10,20,20,20,20} help me out to get correct output for all test cases

What I have tried:

public class M3 {
	public static void main(String[] args)
     {
		int count=0;
		int a=0;
		int[] arr = {8,8,8,8,8,9};
		System.out.print("Number:");
	for(int i=0; i<arr.length; i++)
	{
		int e = arr[i];
		
			  for(int j=i+1; j<arr.length-1; j++)
			  {
				  if(arr[i]==arr[j])
				  {		 
					 if(arr[i]!=arr[j+1])
					  {
						 System.out.print(arr[i]+",");
						 count++;
						 
						break;
					  }
					
					 
					 break;
					 
				  }
				  
				  
			  }
		 }
		 System.out.print(" "+"Count:"+""+count);
		 
		}
	
   }

推荐答案

拿一张纸和一支铅笔，解决问题并找到解决问题的规则。

- 如果连续两个项目不同，你会怎么做？

- 如果连续2个项目是你做什么的相等？

- 如果超过2个项目相同，你会怎么做？

转换为机械程序，检查它。这是你的算法。



使用调试器查看你的代码在做什么。



有一个允许您查看代码正在执行的工具，其名称为调试器。它也是一个很好的学习工具，因为它向你展示了现实，你可以看到哪种期望与现实相符。

当你不明白你的代码在做什么或为什么它做它做的时候，答案就是答案是调试器。

使用调试器查看代码正在执行的操作。只需设置断点并查看代码执行情况，调试器允许您逐行执行第1行并在执行时检查变量。



调试器 - 维基百科，免费的百科全书 [ ^ ]

http://docs.oracle.com/javase/7/docs/technotes/tools/windows/jdb.html [ ^ ]

https://www.jetbrains.com/idea/help/debugging-your-first-java-application.html [ ^ ]

调试器在这里向您展示你的代码正在做，你的任务是与它应该做的事情进行比较。

调试器中没有魔法，它没有找到错误，它只是帮助你。当代码没有达到预期的效果时，你就会接近一个错误。

Take a sheet of paper and a pencil, solve the problem and find rules that solve the problem.
- What do you do if 2 consecutive items are different?
- What do you do if 2 consecutive items are equal ?
- What do you do if more that 2 items are equal ?
Translate to a mechanical procedure, check it. That is your algorithm.

Use the debugger to see what your code is doing.

There is a tool that allow you to see what your code is doing, its name is debugger. It is also a great learning tool because it show you reality and you can see which expectation match reality.
When you don't understand what your code is doing or why it does what it does, the answer is debugger.
Use the debugger to see what your code is doing. Just set a breakpoint and see your code performing, the debugger allow you to execute lines 1 by 1 and to inspect variables as it execute.

Debugger - Wikipedia, the free encyclopedia[^]
http://docs.oracle.com/javase/7/docs/technotes/tools/windows/jdb.html[^]
https://www.jetbrains.com/idea/help/debugging-your-first-java-application.html[^]
The debugger is here to show you what your code is doing and your task is to compare with what it should do.
There is no magic in the debugger, it don't find bugs, it just help you to. When the code don't do what is expected, you are close to a bug.

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