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Ans. This class implements server sockets. A server socket waits for requests to come in over the network. It performs some operation based on that request, and then possibly returns a result to the requester. | ||||
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Ans. Java is widely adopted as an enterprise standard technology across business domains and technical domains ( Web , Desktop , mobile , data science etc ) and has a vast ecosystem of frameworks and libraries. | ||||
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Ans. It’s a mode that can be used for creating Back end application without the front end UI. The advantage is that it reduces the number of packages that needs to be loaded ( by ignoring ui packages ) | ||||
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This question was recently asked at 'Google'.This question is still unanswered. Can you please provide an answer. | ||||
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This question was recently asked at 'Number 8'.This question is still unanswered. Can you please provide an answer. | ||||
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Ans. public class Matrix { public static void main(String[] args) { int[][] matrix = { {1, 2, 3}, {4, 5, 6}, {7, 8, 9} }; Matrix.rotateMatrix(matrix); for (int i = 0; i < matrix.length; i ){ for (int j = 0; j < matrix.length; j ){ System.out.print(matrix[i][j] " "); } System.out.println(); } } public static void rotateMatrix(int[][] matrix){ int row = matrix.length; //first find the transpose of the matrix. for (int i = 0; i < row; i ){ for (int j = i; j < row; j ){ int temp = matrix[i][j]; matrix[i][j] = matrix[j][i]; matrix[j][i] = temp; } } //reverse each row for (int i = 0; i< row; i ){ for(int j = 0; j< row/2; j ){ int temp = matrix[i][j]; matrix[i][j] = matrix[i][row - 1 - j]; matrix[i][row - 1 - j] = temp; } } } } | ||||
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This question was recently asked at 'Fujitsu'.This question is still unanswered. Can you please provide an answer. | ||||
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This question was recently asked at 'Polaris'.This question is still unanswered. Can you please provide an answer. | ||||
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Ans. Yes. We can do that. 1. We can create own own implementation class extending the collection class and then override the behavior method. 2. We can override the behavior at the time of instantiation of class as following List<MyType> list = new ArrayList<MyType>() { public boolean add(MyType mt) { super.add(mt); Collections.sort(list, comparator); return true; } }; | ||||
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Ans. By using map , you can transform the object values. The map operation allows us to apply a function, that takes input parameter of one type, and returns something else. Filter is used for filtering the data, it always returns the boolean value. If it returns true, then item is added to list else its filtered out (ignored) | ||||
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This question was recently asked at '360Degree'.This question is still unanswered. Can you please provide an answer. | ||||
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Ans. Java classLoder is resposible to load java classes. | ||||
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This question was recently asked at '3 Embeded Software Technologies'.This question is still unanswered. Can you please provide an answer. | ||||
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This question was recently asked at 'TalenPace'.This question is still unanswered. Can you please provide an answer. | ||||
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Ans. Through Reflection. | ||||
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Ans. Single Level Multi Level Hierarchical Multiple Hybrid | ||||
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Ans. Because there needs to be a starting point till when there is no object created in memory and hence it needs to be run in static scope | ||||
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Ans. We can have a static inner class but not static outer class. | ||||
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Ans. A List is an child interface of collection interface in java where as Linked list is and implementation class of List interface which has doubly linked as a underlying data structure | ||||
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Ans. platform is the hardware or software environment in which a program runs. There are two types of platforms software-based and hardware-based. Java provides software-based platform. | ||||
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This question was recently asked at 'IBM India'.This question is still unanswered. Can you please provide an answer. | ||||
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Ans. ArrayList is fast for random access, but is slow on deletion and insertion. LinkedList is slow for random access, but is fast on deletion and insertion. | ||||
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This question was recently asked at 'BroadBridge'.This question is still unanswered. Can you please provide an answer. | ||||
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Ans. HashSet implements Set interface. | ||||
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This question was recently asked at 'oodles technology'.This question is still unanswered. Can you please provide an answer. | ||||
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