Software Development

#6: Post edited by

Anonymous‭ · 2021-10-01T04:43:19Z (about 3 years ago)

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I had found a better way to plot in Java.
```java
int n = Integer.parseInt(args[0]);
// the function y = sin(4x) + sin(20x), sampled at n+1 points
// between x = 0 and x = pi
double[] x = new double[n+1];
double[] y = new double[n+1];
for (int i = 0; i <= n; i++) {
x[i] = Math.PI * i / n;
y[i] = Math.sin(4*x[i]) + Math.sin(20*x[i]);
}
// rescale the coordinate system
StdDraw.setXscale(0, Math.PI);
StdDraw.setYscale(-2.1, +2.1);
// plot the approximation to the function
for (int i = 0; i < n; i++) {
StdDraw.line(x[i], y[i], x[i+1], y[i+1]);
}
```
I don't have the StdDraw class. I was searching in internet what should I do to import the class. I had seen that they said to use
```java
import StdDraw;
//or
import stddraw.StdDraw;
//or
import StdDraw.*;
```
None of them are helpful cause I don't have the StdDraw package. I had found [it](https://introcs.cs.princeton.edu/java/stdlib/) then. I can see StdDraw there. But I don't have any idea how can I convert that .java.html to .jar. I had found [it](https://stackoverflow.com/a/32853178) to import the package. But the problem is I can't download the package at first.
![No Project Structure](https://imgur.com/dSj7GGr.png)
What!! I can't see any project structure option in netbeans. Ohh They had wrote the answer for IntelliJ. But I am using Netbeans. Even I don't have any file called `/lib`. I know that I have to put a line in gradle.build
```gradle
implementation 'file_name'
```
But I don't have any idea where I should put that jar file. I have created a folder called libs and pasted that jar file there. Then added the line to gradle.build
```gradle
implementation fileTree(dir: 'libs', include: ['*.jar'])
```
I have re-sync my project. Although I can't find that StdDraw class. I have tried to import that class manually..
```java
import stdlib.StdDraw;
```
~~But `stdlib` doesn't exist. That's what I am getting as error.~~

I had found a better way to plot in Java.
```java
int n = Integer.parseInt(args[0]);
// the function y = sin(4x) + sin(20x), sampled at n+1 points
// between x = 0 and x = pi
double[] x = new double[n+1];
double[] y = new double[n+1];
for (int i = 0; i <= n; i++) {
x[i] = Math.PI * i / n;
y[i] = Math.sin(4*x[i]) + Math.sin(20*x[i]);
}
// rescale the coordinate system
StdDraw.setXscale(0, Math.PI);
StdDraw.setYscale(-2.1, +2.1);
// plot the approximation to the function
for (int i = 0; i < n; i++) {
StdDraw.line(x[i], y[i], x[i+1], y[i+1]);
}
```
I don't have the StdDraw class. I was searching in internet what should I do to import the class. I had seen that they said to use
```java
import StdDraw;
//or
import stddraw.StdDraw;
//or
import StdDraw.*;
```
None of them are helpful cause I don't have the StdDraw package. I had found [it](https://introcs.cs.princeton.edu/java/stdlib/) then. I can see StdDraw there. But I don't have any idea how can I convert that .java.html to .jar. I had found [it](https://stackoverflow.com/a/32853178) to import the package. But the problem is I can't download the package at first.
![No Project Structure](https://imgur.com/dSj7GGr.png)
What!! I can't see any project structure option in netbeans. Ohh They had wrote the answer for IntelliJ. But I am using Netbeans. Even I don't have any file called `/lib`. I know that I have to put a line in gradle.build
```gradle
implementation 'file_name'
```
But I don't have any idea where I should put that jar file. I have created a folder called libs and pasted that jar file there. Then added the line to gradle.build
```gradle
implementation fileTree(dir: 'libs', include: ['*.jar'])
```
I have re-sync my project. Although I can't find that StdDraw class. I have tried to import that class manually..
```java
import stdlib.StdDraw;
```
But `stdlib` doesn't exist. That's what I am getting as error. ~ I was following [the answer](https://stackoverflow.com/a/48930705/16897106)

#5: Post edited by

Anonymous‭ · 2021-10-01T04:42:21Z (about 3 years ago)

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How to install a package in Netbeans?

Why I am unable to find a class after implementing library also?

I had found a better way to plot in Java.
```java
int n = Integer.parseInt(args[0]);
// the function y = sin(4x) + sin(20x), sampled at n+1 points
// between x = 0 and x = pi
double[] x = new double[n+1];
double[] y = new double[n+1];
for (int i = 0; i <= n; i++) {
x[i] = Math.PI * i / n;
y[i] = Math.sin(4*x[i]) + Math.sin(20*x[i]);
}
// rescale the coordinate system
StdDraw.setXscale(0, Math.PI);
StdDraw.setYscale(-2.1, +2.1);
// plot the approximation to the function
for (int i = 0; i < n; i++) {
StdDraw.line(x[i], y[i], x[i+1], y[i+1]);
}
```
I don't have the StdDraw class. I was searching in internet what should I do to import the class. I had seen that they said to use
```java
import StdDraw;
//or
import stddraw.StdDraw;
//or
import StdDraw.*;
```
None of them are helpful cause I don't have the StdDraw package. I had found [it](https://introcs.cs.princeton.edu/java/stdlib/) then. I can see StdDraw there. But I don't have any idea how can I convert that .java.html to .jar. I had found [it](https://stackoverflow.com/a/32853178) to import the package. But the problem is I can't download the package at first.
![No Project Structure](https://imgur.com/dSj7GGr.png)
What!! I can't see any project structure option in netbeans. Ohh They had wrote the answer for IntelliJ. But I am using Netbeans. Even I don't have any file called `/lib`. I know that I have to put a line in gradle.build
```gradle
implementation 'file_name'
```
~~But I don't have any idea where I should put that jar file.~~

I had found a better way to plot in Java.
```java
int n = Integer.parseInt(args[0]);
// the function y = sin(4x) + sin(20x), sampled at n+1 points
// between x = 0 and x = pi
double[] x = new double[n+1];
double[] y = new double[n+1];
for (int i = 0; i <= n; i++) {
x[i] = Math.PI * i / n;
y[i] = Math.sin(4*x[i]) + Math.sin(20*x[i]);
}
// rescale the coordinate system
StdDraw.setXscale(0, Math.PI);
StdDraw.setYscale(-2.1, +2.1);
// plot the approximation to the function
for (int i = 0; i < n; i++) {
StdDraw.line(x[i], y[i], x[i+1], y[i+1]);
}
```
I don't have the StdDraw class. I was searching in internet what should I do to import the class. I had seen that they said to use
```java
import StdDraw;
//or
import stddraw.StdDraw;
//or
import StdDraw.*;
```
None of them are helpful cause I don't have the StdDraw package. I had found [it](https://introcs.cs.princeton.edu/java/stdlib/) then. I can see StdDraw there. But I don't have any idea how can I convert that .java.html to .jar. I had found [it](https://stackoverflow.com/a/32853178) to import the package. But the problem is I can't download the package at first.
![No Project Structure](https://imgur.com/dSj7GGr.png)
What!! I can't see any project structure option in netbeans. Ohh They had wrote the answer for IntelliJ. But I am using Netbeans. Even I don't have any file called `/lib`. I know that I have to put a line in gradle.build
```gradle
implementation 'file_name'
```
But I don't have any idea where I should put that jar file. I have created a folder called libs and pasted that jar file there. Then added the line to gradle.build
```gradle
implementation fileTree(dir: 'libs', include: ['*.jar'])
```
I have re-sync my project. Although I can't find that StdDraw class. I have tried to import that class manually..
```java
import stdlib.StdDraw;
```
But `stdlib` doesn't exist. That's what I am getting as error.

#4: Post edited by

Anonymous‭ · 2021-10-01T04:37:32Z (about 3 years ago)

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I had found a better way to plot in Java.
```java
int n = Integer.parseInt(args[0]);
// the function y = sin(4x) + sin(20x), sampled at n+1 points
// between x = 0 and x = pi
double[] x = new double[n+1];
double[] y = new double[n+1];
for (int i = 0; i <= n; i++) {
x[i] = Math.PI * i / n;
y[i] = Math.sin(4*x[i]) + Math.sin(20*x[i]);
}
// rescale the coordinate system
StdDraw.setXscale(0, Math.PI);
StdDraw.setYscale(-2.1, +2.1);
// plot the approximation to the function
for (int i = 0; i < n; i++) {
StdDraw.line(x[i], y[i], x[i+1], y[i+1]);
}
```
I don't have the StdDraw class. I was searching in internet what should I do to import the class. I had seen that they said to use
```java
import StdDraw;
//or
import stddraw.StdDraw;
//or
import StdDraw.*;
```
None of them are helpful cause I don't have the StdDraw package. I had found [it](https://introcs.cs.princeton.edu/java/stdlib/) then. I can see StdDraw there. But I don't have any idea how can I convert that .java.html to .jar. I had found [it](https://stackoverflow.com/a/32853178) to import the package. But the problem is I can't download the package at first.
![No Project Structure](https://imgur.com/dSj7GGr.png)
~~What!! I can't see any project structure option in netbeans. Ohh They had wrote the answer for IntelliJ. But I am using Netbeans. Even I don't have any file called `/lib`.~~

I had found a better way to plot in Java.
```java
int n = Integer.parseInt(args[0]);
// the function y = sin(4x) + sin(20x), sampled at n+1 points
// between x = 0 and x = pi
double[] x = new double[n+1];
double[] y = new double[n+1];
for (int i = 0; i <= n; i++) {
x[i] = Math.PI * i / n;
y[i] = Math.sin(4*x[i]) + Math.sin(20*x[i]);
}
// rescale the coordinate system
StdDraw.setXscale(0, Math.PI);
StdDraw.setYscale(-2.1, +2.1);
// plot the approximation to the function
for (int i = 0; i < n; i++) {
StdDraw.line(x[i], y[i], x[i+1], y[i+1]);
}
```
I don't have the StdDraw class. I was searching in internet what should I do to import the class. I had seen that they said to use
```java
import StdDraw;
//or
import stddraw.StdDraw;
//or
import StdDraw.*;
```
None of them are helpful cause I don't have the StdDraw package. I had found [it](https://introcs.cs.princeton.edu/java/stdlib/) then. I can see StdDraw there. But I don't have any idea how can I convert that .java.html to .jar. I had found [it](https://stackoverflow.com/a/32853178) to import the package. But the problem is I can't download the package at first.
![No Project Structure](https://imgur.com/dSj7GGr.png)
What!! I can't see any project structure option in netbeans. Ohh They had wrote the answer for IntelliJ. But I am using Netbeans. Even I don't have any file called `/lib`. I know that I have to put a line in gradle.build
```gradle
implementation 'file_name'
```
But I don't have any idea where I should put that jar file.

#3: Post edited by

Anonymous‭ · 2021-10-01T04:34:47Z (about 3 years ago)

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~~How to install a package?~~

How to install a package in Netbeans?

I had found a better way to plot in Java.
```java
int n = Integer.parseInt(args[0]);
// the function y = sin(4x) + sin(20x), sampled at n+1 points
// between x = 0 and x = pi
double[] x = new double[n+1];
double[] y = new double[n+1];
for (int i = 0; i <= n; i++) {
x[i] = Math.PI * i / n;
y[i] = Math.sin(4*x[i]) + Math.sin(20*x[i]);
}
// rescale the coordinate system
StdDraw.setXscale(0, Math.PI);
StdDraw.setYscale(-2.1, +2.1);
// plot the approximation to the function
for (int i = 0; i < n; i++) {
StdDraw.line(x[i], y[i], x[i+1], y[i+1]);
}
```
I don't have the StdDraw class. I was searching in internet what should I do to import the class. I had seen that they said to use
```java
import StdDraw;
//or
import stddraw.StdDraw;
//or
import StdDraw.*;
```
None of them are helpful cause I don't have the StdDraw package. I had found [it](https://introcs.cs.princeton.edu/java/stdlib/) then. I can see StdDraw there. But I don't have any idea how can I convert that .java.html to .jar. I had found [it](https://stackoverflow.com/a/32853178) to import the package. But the problem is I can't download the package at first.
![No Project Structure](https://imgur.com/dSj7GGr.png)
~~What!! I can't see any project structure option in netbeans. I am running Gradle Project. I am more familiar with Gradle rather than Maven.~~

I had found a better way to plot in Java.
```java
int n = Integer.parseInt(args[0]);
// the function y = sin(4x) + sin(20x), sampled at n+1 points
// between x = 0 and x = pi
double[] x = new double[n+1];
double[] y = new double[n+1];
for (int i = 0; i <= n; i++) {
x[i] = Math.PI * i / n;
y[i] = Math.sin(4*x[i]) + Math.sin(20*x[i]);
}
// rescale the coordinate system
StdDraw.setXscale(0, Math.PI);
StdDraw.setYscale(-2.1, +2.1);
// plot the approximation to the function
for (int i = 0; i < n; i++) {
StdDraw.line(x[i], y[i], x[i+1], y[i+1]);
}
```
I don't have the StdDraw class. I was searching in internet what should I do to import the class. I had seen that they said to use
```java
import StdDraw;
//or
import stddraw.StdDraw;
//or
import StdDraw.*;
```
None of them are helpful cause I don't have the StdDraw package. I had found [it](https://introcs.cs.princeton.edu/java/stdlib/) then. I can see StdDraw there. But I don't have any idea how can I convert that .java.html to .jar. I had found [it](https://stackoverflow.com/a/32853178) to import the package. But the problem is I can't download the package at first.
![No Project Structure](https://imgur.com/dSj7GGr.png)
What!! I can't see any project structure option in netbeans. Ohh They had wrote the answer for IntelliJ. But I am using Netbeans. Even I don't have any file called `/lib`.

#2: Post edited by

Anonymous‭ · 2021-10-01T04:33:16Z (about 3 years ago)

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I had found a better way to plot in Java.
```java
int n = Integer.parseInt(args[0]);
// the function y = sin(4x) + sin(20x), sampled at n+1 points
// between x = 0 and x = pi
double[] x = new double[n+1];
double[] y = new double[n+1];
for (int i = 0; i <= n; i++) {
x[i] = Math.PI * i / n;
y[i] = Math.sin(4*x[i]) + Math.sin(20*x[i]);
}
// rescale the coordinate system
StdDraw.setXscale(0, Math.PI);
StdDraw.setYscale(-2.1, +2.1);
// plot the approximation to the function
for (int i = 0; i < n; i++) {
StdDraw.line(x[i], y[i], x[i+1], y[i+1]);
}
```
I don't have the StdDraw class. I was searching in internet what should I do to import the class. I had seen that they said to use
```java
import StdDraw;
//or
import stddraw.StdDraw;
//or
import StdDraw.*;
```
None of them are helpful cause I don't have the StdDraw package. I had found [it](https://introcs.cs.princeton.edu/java/stdlib/) then. I can see StdDraw there. But I don't have any idea how can I convert that .java.html to .jar. I had found [it](https://stackoverflow.com/a/32853178) to import the package. But the problem is I can't download the package at first.

I had found a better way to plot in Java.
```java
int n = Integer.parseInt(args[0]);
// the function y = sin(4x) + sin(20x), sampled at n+1 points
// between x = 0 and x = pi
double[] x = new double[n+1];
double[] y = new double[n+1];
for (int i = 0; i <= n; i++) {
x[i] = Math.PI * i / n;
y[i] = Math.sin(4*x[i]) + Math.sin(20*x[i]);
}
// rescale the coordinate system
StdDraw.setXscale(0, Math.PI);
StdDraw.setYscale(-2.1, +2.1);
// plot the approximation to the function
for (int i = 0; i < n; i++) {
StdDraw.line(x[i], y[i], x[i+1], y[i+1]);
}
```
I don't have the StdDraw class. I was searching in internet what should I do to import the class. I had seen that they said to use
```java
import StdDraw;
//or
import stddraw.StdDraw;
//or
import StdDraw.*;
```
None of them are helpful cause I don't have the StdDraw package. I had found [it](https://introcs.cs.princeton.edu/java/stdlib/) then. I can see StdDraw there. But I don't have any idea how can I convert that .java.html to .jar. I had found [it](https://stackoverflow.com/a/32853178) to import the package. But the problem is I can't download the package at first.
![No Project Structure](https://imgur.com/dSj7GGr.png)
What!! I can't see any project structure option in netbeans. I am running Gradle Project. I am more familiar with Gradle rather than Maven.

#1: Initial revision by

Anonymous‭ · 2021-10-01T03:23:21Z (about 3 years ago)

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How to install a package?

I had found a better way to plot in Java.

```java
        int n = Integer.parseInt(args[0]);

        // the function y = sin(4x) + sin(20x), sampled at n+1 points
        // between x = 0 and x = pi
        double[] x = new double[n+1];
        double[] y = new double[n+1];
        for (int i = 0; i <= n; i++) {
            x[i] = Math.PI * i / n;
            y[i] = Math.sin(4*x[i]) + Math.sin(20*x[i]);
        }

        // rescale the coordinate system
        StdDraw.setXscale(0, Math.PI);
        StdDraw.setYscale(-2.1, +2.1);

        // plot the approximation to the function
        for (int i = 0; i < n; i++) {
            StdDraw.line(x[i], y[i], x[i+1], y[i+1]);
        }
```

I don't have the StdDraw class. I was searching in internet what should I do to import the class. I had seen that they said to use

```java
import StdDraw;
//or
import stddraw.StdDraw;
//or
import StdDraw.*;
```

None of them are helpful cause I don't have the StdDraw package. I had found [it](https://introcs.cs.princeton.edu/java/stdlib/) then. I can see StdDraw there. But I don't have any idea how can I convert that .java.html to .jar. I had found [it](https://stackoverflow.com/a/32853178) to import the package. But the problem is I can't download the package at first.

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