parallel arrays java

The Arrays class is a tool class provided in Java, in the Java.util package. The class contains methods for manipulating arrays directly, such as sorting, searching, and so on (for classes and methods), which are explained in detail in a later section.Common methods in Arrays:1. SortingSyntax: arrays.sort (array name);

Array, which is a combination of multiple data types of the same type.The use of arrays includes declaring arrays, creating arrays, assigning values.Declaration of one-dimensional array, such as: float[] A; or float a[]Declarations of two-dimensional arrays, such as: float[] [] A or float a[[]The array declaration is n

This class implements:Output a row of array data, according to the input subscript, the following position is the end, the original array is divided into two sets of sub-arrays.and swaps the positions of two sub-arrays, keeping the ordinal number of the elements in the subarray unchanged.For example: The original array is 7,9,8,5,3,2 the following 3 is the split point, divided into sub-array one: 7,9,8,5. and sub-array two: 3,2.The result after the sw

Two-dimensional arraysThe Java language provides syntax to support multidimensional arrays. But if you look at the operating mechanism at the bottom of the array-there are no multidimensional arrays.The array type in Java is a reference type, so the array variable is actually a reference, which points to the real array memory, the type of the array element can al

Array:#include Dynamic arrays:#include Difference:Two-dimensional arrays:#include Java program Apes learn C + + arrays and dynamic arrays

, Arry2)); Filling fill Arrays.fill (Arry2, "Guangzhou"); System.out.println ("Arry2 value after padding:" +arrays.tostring (Arry2)); Query BinarySearch The premise is that the array has been sorted before you can use System.out.println ("Chongqing in arry1 Position:" +arrays.binarysearch (Arry1, "Chongqing")); }}Operation Result:Arry2 is: [Beijing, Shanghai, Chongqing, Shenzhen]arry1 and Arry2 are equal: True after sorting the value of the arry1: [Shanghai, Beijing, Shenzhen, C

. The corresponding elements in the array can be checked directly according to the result of the operation as a corner mark. This way: called the look-up table method. */ Public Static voidTohex_1 (intnum) { //define a corresponding relational table Char[] CHS = {' 1 ', ' 2 ', ' 3 ', ' 4 ', ' 5 ', ' 6 ', ' 7 ', ' 8 ', ' 9 ', ' A ', ' B ', ' C ', ' D ', ' E ', ' F '}; for(intx=0;x) { inttemp = num 15; System.out.print (Chs[temp]); Num= num >>>4; } } Pu

The use of two-dimensional arrays in Java (indefinite long two-dimensional arrays), that is, the array lengths of each second dimension are different. 1 Code as follows: Package com.demo.test; public class Test {public Test () {//TODO auto-generated constructor stub} public static void Main (string[] args {//TODO auto-generated method Stub int []

Array:#include Dynamic arrays:#include Difference: Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced. Java Programmers learn C + + arrays and dynamic arrays

In Java, byte arrays and long arrays are converted to each other. The byteandlongarraytest code is as follows: Package com. array. test; Import java. Io. ioexception; /** * @ Version 1.0 * @ Author wangwei * @ Created on 2008-10-17 */ Public class byteandlongarraytest { /** * Convert a long array to a

)); //change the value of the A2 array from subscript 1 to subscript 3 to 1Arrays.fill (A2, 1, 3, 1); System.out.println (The value of the output A2 array is: "+arrays.tostring (A2)); }}The output is:The A1 array is sorted by: [1, 2, 3, 4]Find the value of 4 in the A1 array subscript: 3Find the A1 array from subscript 1 to subscript 3 end to see if there is a value of 3 2The values of the A3 array are: [1, 2, 3, 4, 0]The A4 array value is: [3]See if the A1 array and the A2 array are the same: fa