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不好意思，麻煩JAVA的高手們，幫忙以初學者的解法去解這兩題，幫幫我，萬分感謝....↓
(1.)
Write a Java program that estimates the value of the mathematical constant e by using the formula:

Prompt the user for the desired accuracy of e
Test cases:
please input the desired accuracy of e: 0.00000001
e=2.7182818282861687

please input the desired accuracy of e: 0.00000001
e=2.7182818271175897  
..........................................................................................................(分隔線)
(2.)
Please write a Java program to display the following result according to the input number from user
please input number: 4
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