ArraySwapMainUserArraySwapMainUserRun programCall swap(arr, 1, 3)Check index validitySwap elementsReturnOutput result 五、执行结果 运行上述代码,将会得到如下输出: Before swap: [1, 2, 3, 4, 5] After swap: [1, 4, 3, 2, 5] 1. 2. 六、时空复杂度分析 这个swap操作的时间复杂度为 O(1),...
1. 此时,位置互换已经完成。你可以通过打印数组来验证结果。 System.out.println(Arrays.toString(array)); 1. 完整的代码示例如下: publicclassSwapElements{publicstaticvoidmain(String[]args){int[]array={1,2,3,4,5};intindex1=0;intindex2=2;inttemp=array[index1];array[index1]=array[index2];arra...
API---Resizable-array implementation of the List interface. Implements all optional list operations, and permits all elements, including null. In addition to implementing the List interface, this class provides methods to manipulate the size of the array that is used internally to store the list. ...
根据元素的自然顺序对List集合中的元素进行排序 static void swap(List list,int i,int j) 将指定List集合中i处元素和j处元素进行交换 以上都比较简单,在用的时候看一下就会明白。 2.2 查找替换 static int binaryScarch ( List list,Object key) 使用二分法搜索指定对象在List集合中的索引,查找的 List集合中的...
package com.zhangfei.泛型方法; public class GenericMethodExample { // 泛型方法,用于交换两个对象的值 public static <T> void swap(T[] array, int i, int j) { T temp = array[i]; array[i] = array[j]; array[j] = temp; } public static void main(String[] args) { // 示例:使用泛...
in the destination data. * @param length the number of array elements to be copied. ...
publicbooleanadd(Te) {finalReentrantLocklock=this.lock;lock.lock();try {Object[] elements=getArray();intlen=elements.length;// 复制出新数组Object[] newElements=Arrays.copyOf(elements, len+1);// 把新元素添加到新数组里newElements[len] =e;// 把原数组引用指向新数组setArray(newElements);return...
public native int arrayBaseOffset(Class arrayClass); /*** * Returns the scale factor used for addressing elements of the supplied * array class. Where a suitable scale factor can not be returned (e.g. * for primitive types), zero should be returned. The returned value ...
var arr = app.returns123(); swapElements0And2(arr); app.expects321(arr); app.expects321([ 3, 2, 1 ]); // Returns 2-dimensional Java array arr = app.returns1Through9(); // Transform this into 9..1 swapElements0And2(arr); swapColumns0And2(arr); app.expects9Through1(arr...
v1.add("bb"); v1.add("ccc"); v1.add("dddd"); Enumeration<String> en1=v1.elements();while(en1.hasMoreElements()){ System.out.println(en1.nextElement()); } } } Arrays: package容器工具类.Collections_Arrays;importjava.util.ArrayList;importjava.util.Arrays;importjava.util.HashMap;im...