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# Generate Random Point in a Circle

Given the radius and x-y positions of the center of a circle, write a function randPoint which generates a uniform random point in the circle. Note:

1. input and output values are in floating-point.

2. radius and x-y position of the center of the circle is passed into the class constructor.

3. a point on the circumference of the circle is considered to be in the circle.

4. randPoint returns a size 2 array containing x-position and y-position of the random point, in that order.

Example 1:

```
Input:  ["Solution","randPoint","randPoint","randPoint"] [[1,0,0],[],[],[]]
Output: [null,[-0.72939,-0.65505],[-0.78502,-0.28626],[-0.83119,-0.19803]]

```

Example 2:

```
Input:  ["Solution","randPoint","randPoint","randPoint"] [[10,5,-7.5],[],[],[]]
Output: [null,[11.52438,-8.33273],[2.46992,-16.21705],[11.13430,-12.42337]]

```

Explanation of Input Syntax:

The input is two lists: the subroutines called and their arguments. Solution's constructor has three arguments, the radius, x-position of the center, and y-position of the center of the circle. randPoint has no arguments. Arguments are always wrapped with a list, even if there aren't any.

Solution:

```class Solution {
double r;
double x;
double y;

public Solution(double radius, double x_center, double y_center) {
this.x=x_center;
this.y=y_center;
}

public double[] randPoint() {
double minx = x-r;
double maxx = x+r;
double miny = y-r;
double maxy = y+r;

double[] result = new double;
result = ((Math.random()*(maxx-minx))+minx);
result = ((Math.random()*(maxy-miny))+miny);

while((result-x)*(result-x) + (result-y)*(result-y)>=r*r)
{
result = ((Math.random()*(maxx-minx))+minx);
result = ((Math.random()*(maxy-miny))+miny);
}

return result;
}

}

/**
* Your Solution object will be instantiated and called as such:
* Solution obj = new Solution(radius, x_center, y_center);
* double[] param_1 = obj.randPoint();
*/

```