
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Transcribed Image Text:Design and implement a Java application for saving and operating on unique numbers in
an array (the Java file name should be “Array4Uniques.java"). Its specific requirements
are listed below:
• It first asks for input for the size of the array, that is, the number of unique
numbers to be stored on the array;
• It then asks for two positive integers, min and max, to be used to define a
sequence of random numbers, in the range between min and mæx inclusive;
• The application will now keep generating a random number in the range defined
above, if the random number is unique (that is not on the array by now), store this
random number to the array. This process will continue until the array is full.
• Hint: you may đefine a boolean variable alreacyOnArray for testing
whether the newly generated random is already on the array.
• At the end, print out the unique numbers on the array and the total number of
random numbers generated for the whole process.
• Use the following testing samples (2 runs) for your design and implementation.
what is the array size? 10
The minimum number for testing? 10
The maximum number for testing? 18
Enter the maximum number again: 17
Enter the maximum number again: 19
Numbers on the array:
15 17 11 10 19 16 13 14 12 18
For these 10 unique numbers, 28 random numbers have been generated.
What is the array size? 20
The minimum number for testing? 30
The maximum number for testing? 60
Numbers on the array:
33 34 44 39 35 48 57 49 53 60 58 41 37 52 45 40 51 46 56 38
For these 20 unique numbers, 32 random numbers have been generated.
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