Ask question

Ask question

All categories

3 years ago

15

________ returns the last character in a StringBuilder variable named strBuf? Select one: A. strBuf.charAt(strBuf.length() - 1)

B. StringBuilder.charAt(strBuf.length() - 1) C. StringBuilder.charAt(strBuf.capacity() - 1) D. strBuf.charAt(strBuf.capacity() - 1)

Computers and Technology

1 answer:

Lunna [17]3 years ago

4 0

Answer:

A

Explanation:

strBuf.charAt(strBuf.length() - 1)

You might be interested in

Pat creates a table in a spread sheet

Anna11 [10]

Answer:

Explanation:

Details?

7 0

4 years ago

In which situation is coauthoring of presentations primarily utilized?

Tanya [424]

Answer:

A i belive

Explanation:

3 0

3 years ago

Read 2 more answers

A sinewave has a period (duration of one cycle) of 645 μs. What is the corresponding frequency of this sinewave, in kHz, express

irga5000 [103]

The corresponding frequency of this sinewave, in kHz, expressed to 3 significant figures is: <em>155 kHz.</em>

<u>Given the following data:</u>

Period = 645 μs

Note: μs represents microseconds.

<u>Conversion:</u>

1 μs = $1$ × $10^{-6}$ seconds

645 μs = $645$ × $10^{-6}$ seconds

To find corresponding frequency of this sinewave, in kHz;

Mathematically, the frequency of a waveform is calculated by using the formula;

$Frequency = \frac{1}{Period}$

Substituting the value into the formula, we have;

$Frequency = \frac{1}{645\; * \;10^{-6}}$

Frequency = 1550.39 Hz

Next, we would convert the value of frequency in hertz (Hz) to Kilohertz (kHz);

<u>Conversion:</u>

1 hertz = 0.001 kilohertz

1550.3876 hertz = X kilohertz

Cross-multiplying, we have;

X = $0.001$ × $1550.39$

X = 155039 kHz

To 3 significant figures;

<em>Frequency = 155 kHz</em>

Find more information: brainly.com/question/23460034

5 0

3 years ago

A file is to be shared among different processes, each of which has a unique number. The file can be accessed simultaneously by

UkoKoshka [18]

Answer:

monitor fileSharer

{

enum {THINKING, WAITING, READING} state[N];

condition self[N];

int total;

void open(int i) {

state[i] = WAITING;

if (i + total >= N)

{ self[i].wait(); } // Leaves monitor

state[i] = READING;

total += i;

}

void close(int i) {

state[i] = THINKING;

total -= i;

// Can signal one waiting proc whose ID won't break bank.

for (int x = N - total - 1; x >= 0; x--) {

if (state[x] == WAITING) {

self[x].signal(); break;

}

}

}

initialization.code() {

for (int i = 0; i < N; i++) {

state[i] = THINKING;

}

total = 0;

}

}

8 0

4 years ago

describe how sodium ammonium chloride can be separated from a solid mixture of ammonium chloride and anhydrous calcium chloride

kirill115 [55]

Answer:

There are way in separating mixtures of chlorides salts such as that of sodium chloride and ammonium chloride. It can be done by crystallization, filtration or sublimation. If we want to separate the mixture, we have to heat up to 330-350 degrees Celsius and collect the gas that will be produced.

5 0

3 years ago