java - Java 中的 if-else 语句

Question

我的程序有一个小问题，我确定它出在这个循环和 if-else 语句中:

for (int i = 0; i < xArray.length; i++)
        {
            if(searchNumber == xArray[i])
            {
                found = true;

                if(found)
                {
                    System.out.println("We have found your number " + searchNumber + " at position " + i + " in the array. " );
                }
                else
                {
                 System.out.println("No match was found.");                 
                }

                break;

            }

        }   

当我执行该程序时，如果找到 searchNumber(通过扫描仪使用键盘输入获取)，那么它将显示相应的消息，表示已找到它，但如果未找到，则不会显示任何消息显示。我尝试通过告诉自己每行代码正在做什么来调试它，但是当我进入这个循环时，我感到非常困惑。

Answer 1

确保 found 以 false 开头。然后在循环完成(或中断)后进行打印。

boolean found = false;
int i;//thanks @DaveNewton !
for (i = 0; i < xArray.length; i++)
{
    if(searchNumber == xArray[i])
    {
        found = true;
        break;
    }
}   

if(found)
    System.out.println("We have found your number " + searchNumber + " at position " + i + " in the array. " );
else
    System.out.println("No match was found.");