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How to get the input number in java
How to get the input number in java: 1. Create a Scanner object to read the user's input; 2. Get the integer number entered by the user by calling the nextInt() method; 3. Output the obtained number. If you want to know more about java, you can read the articles below this topic.
How to get the current time in JAVAHow to get the current time in JAVA: 1. Using the Date class, you can use the no-argument constructor of the Date class to create a Date object representing the current time, and then use the "toString()" method of the object to convert it into a string representation; 2. Use the Calendar class to obtain the values of the current time's fields such as year, month, day, hour, minute, and second. 3. Use the new time and date API to provide a more concise, easy-to-use, and thread-safe way. Process dates and times.
How to write data to a file using the write() function of the BufferedWriter class in JavaHow Java writes data to a file using the write() function of the BufferedWriter class The BufferedWriter class is a useful class in the JavaIO library that can be used to write data to a file efficiently. Through the write() function of BufferedWriter, we can write string data to a file in the form of a character stream. This article will introduce how to use the write() function of the BufferedWriter class to write data to a file
How to implement insertion sort in JavaImplementation method: 1. Create a Java sample file; 2. Use the sort method to insert the sorting algorithm; 3. Use a for loop to traverse the array and insert each element into the correct position in the sorted partial array; 4. In the main method The array is sorted; 5. Output the result.
How to quickly sort functions in javaQuick sort method: 1. Create a Java sample file; 2. Implement the quick sort algorithm through the quickSort method; 3. Select an element in the array as the pivot (pivot), and divide the array into two sub-arrays, one containing the pivot The element with the smaller element is the smaller element, and the other contains the element that is larger than the pivot element, and then the quick sort algorithm is recursively applied to the two sub-arrays; 4. Sort the array in the main method and output the result.
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