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Vanyuwa [196]
3 years ago
15

Write a method named lastIndexOf that accepts an array of integers and an * integer value as its parameters and returns the last

index at which the * value occurs in the array. The method should return -1 if the value is not * found.
Computers and Technology
1 answer:
evablogger [386]3 years ago
7 0

Answer:

The method is as follows:

public static int lastIndexOf(int [] numbers, int num){

    int lastIndex = numbers[0];

    for(int i =0; i<numbers.length;i+=num){

        lastIndex = numbers[i];

    }

    return lastIndex;

}

Explanation:

This defines the method

public static int lastIndexOf(int [] numbers, int num){

This initializes the lastIndex to the first element of the array

    int lastIndex = numbers[0];

This iterates through every "num" element of the array

    for(int i =0; i<numbers.length;i+=num){

This gets the current index... until the last

        lastIndex = numbers[i];     }

This returns the last

    return lastIndex; }

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should variables that contain numbers always be declared as integer or floating-point data types? why or why not? name potential
Stells [14]

No, it is not necessary that variables that contain numbers should always be declared as integer or floating-point data types.

It is not necessary that variables that contain numbers should be declared as integer and floating point data types. Because number can be declared with different data types.  As we know that data type is a vital aspect in programming. It describes the type of a value that is contained in a variable. It is the data type based on which memory is allocated to a number or any type of variables.

Numbers can be whole decimal/fractional, signed, unsigned, small, and long. Simply, they exist in a variety of values. According to their values range, the amount of memory is reserved.

Different programming languages offer different data types to store numbers, depending on their types and size. Let’s consider some examples of data types used in programming languages in order to declare variables holding numbers.

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6 0
2 years ago
What is a good rule of thumb for how much white space you should have in a flyer or poster
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6 0
3 years ago
Read 2 more answers
n a​ poll, 6767​% of Internet users are more careful about personal information when using a public​ Wi-Fi hotspot. What is the
a_sh-v [17]

Answer:

The probability that among three randomly selected Internet​ users, at least one is more careful about personal information when using a public​ Wi-Fi hotspot is 0.964

If the survey subjects <em>volunteered</em> to​ respond , then those with the strongest opinions are most likely respond. The survey sample is then not randomly selected, the survey may have a <em>response bias.</em>

Explanation:

Let P(at least one is more careful about personal information when using a public​ Wi-Fi hotspot) denote the probability that among three randomly selected Internet​ users, at least one is more careful about personal information when using a public​ Wi-Fi hotspot, then we have the equation

P(at least one is more careful about personal information when using a public​ Wi-Fi hotspot) = 1 - P(none of the selected users is more careful about personal information when using a public​ Wi-Fi hotspot)

  • If 67​% of Internet users are more careful about personal information when using a public​ Wi-Fi, then 33% of them are not.

P(none of the selected users is more careful about personal information when using a public​ Wi-Fi hotspot) = 0.33^{3} ≈ 0.036

P(at least one is more careful about personal information when using a public​ Wi-Fi hotspot)  = 1 - 0.036 = 0.964

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3 years ago
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