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(this is a little easier to explain if it's drawn out, but I'll try my best to do it here) Given some integer N = 2^k which represents an NxN matrix, write a function that fills the matrix with 'L' shapes, such that the entire matrix is filled except for 1 empty space. For example, a 2x2 matrix would have 3 spaces filled with one of the corners empty. And a 4x4 matrix would have the entire outer row of spaces filled, with the center 4 filled the same way the 2x2 matrix is filled.
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Android Developer

Interviewed at Vine

3.9★
Apr 19, 2016

(this is a little easier to explain if it's drawn out, but I'll try my best to do it here) Given some integer N = 2^k which represents an NxN matrix, write a function that fills the matrix with 'L' shapes, such that the entire matrix is filled except for 1 empty space. For example, a 2x2 matrix would have 3 spaces filled with one of the corners empty. And a 4x4 matrix would have the entire outer row of spaces filled, with the center 4 filled the same way the 2x2 matrix is filled.

1. Find coordinates of intersection A rectangle is called rectilinear if its edges are all parallel to coordinated axes. Such a rectangle can be described by specifying the coordinated of its lower-left and upper-right corners. Write a function: function solution($K,$L,$M,$N,$P,$Q,$R,$S); that given eight integers representing two rectilinear rectangles (one with lower-left corner (K,L) and upper right corner (M,N), and another with lower-left corner (P,Q) and upper-right corner (R,S)), returns the area of the sum of the rectangles. If the rectangles intersect the area of the intersection should be counted only once. The function should return -1 if the area of the sum exceeds 2,147,483,647. For example Given Integers: K= -4 L = 1 M = 2 N = 6 P = 0 Q = -1 R = 4 S = 3 **the function should return 42** * The area of the First rectangle is 30 and the area of the second rectangle is 16 and the area of their intersection is 4. Assume that * K,L,M,N,P,Q,R and S are integers within the range [-2147483648...2147483647]. * K<M * L<N * P<R * Q<S
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Android Developer

Interviewed at Rakuten

3.6★
Nov 20, 2015

1. Find coordinates of intersection A rectangle is called rectilinear if its edges are all parallel to coordinated axes. Such a rectangle can be described by specifying the coordinated of its lower-left and upper-right corners. Write a function: function solution($K,$L,$M,$N,$P,$Q,$R,$S); that given eight integers representing two rectilinear rectangles (one with lower-left corner (K,L) and upper right corner (M,N), and another with lower-left corner (P,Q) and upper-right corner (R,S)), returns the area of the sum of the rectangles. If the rectangles intersect the area of the intersection should be counted only once. The function should return -1 if the area of the sum exceeds 2,147,483,647. For example Given Integers: K= -4 L = 1 M = 2 N = 6 P = 0 Q = -1 R = 4 S = 3 **the function should return 42** * The area of the First rectangle is 30 and the area of the second rectangle is 16 and the area of their intersection is 4. Assume that * K,L,M,N,P,Q,R and S are integers within the range [-2147483648...2147483647]. * K<M * L<N * P<R * Q<S

You’re writing a monitoring app that periodically checks if a website is up. Of those listed below, what is the BEST way to schedule these periodic checks? A. Register a WakeLock with PowerManager. B. Call setInexactRepeating on AlarmManager. C. Post to a Handler with postDelayed. D. Call setPeriodicTimer on TimerService.
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Android Developer

Interviewed at Meta

3.6★
May 1, 2015

You’re writing a monitoring app that periodically checks if a website is up. Of those listed below, what is the BEST way to schedule these periodic checks? A. Register a WakeLock with PowerManager. B. Call setInexactRepeating on AlarmManager. C. Post to a Handler with postDelayed. D. Call setPeriodicTimer on TimerService.

Q1: If there is a new Android engineer, how will you suggest the best practice of async jobs in Android? (And the detail about AsyncTask, Executor, Thread interrupt, memory leak...and so on) Q2: Give an unsorted array, find the kth smallest item (Can you do it more quickly?)
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Android Developer

Interviewed at Meta

3.6★
Dec 18, 2016

Q1: If there is a new Android engineer, how will you suggest the best practice of async jobs in Android? (And the detail about AsyncTask, Executor, Thread interrupt, memory leak...and so on) Q2: Give an unsorted array, find the kth smallest item (Can you do it more quickly?)

What is the output of the following program? class Poly { static int length; int width; public Poly(int l, int w) { length = l; width = w; } int area() { return 2*length*width; } } class Rect extends Poly { public Rect(int l, int w) { super(l,w); } int area() { return length*width; } } class Solution { public static void main(String args[]) { Poly rect1 = new Poly(5,5); Poly rect2 = new Rect(6,4); int area1 = rect1.area(); int area2 = rect2.area(); System.out.println(area1 + " " + area2); } } 30 24 60 48 60 24 25 24 50 48 48 24 50 24
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Android Developer

Interviewed at Smartprix

3.4★
Aug 3, 2016

What is the output of the following program? class Poly { static int length; int width; public Poly(int l, int w) { length = l; width = w; } int area() { return 2*length*width; } } class Rect extends Poly { public Rect(int l, int w) { super(l,w); } int area() { return length*width; } } class Solution { public static void main(String args[]) { Poly rect1 = new Poly(5,5); Poly rect2 = new Rect(6,4); int area1 = rect1.area(); int area2 = rect2.area(); System.out.println(area1 + " " + area2); } } 30 24 60 48 60 24 25 24 50 48 48 24 50 24

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