String[] array = {"A", "B", "C", "D", "E"}; ArrayUtils.reverse(arr); System.out.println(Arrays.toString(arr)); //[E, D, C, B, A] 5. Conclusion In this short tutorial, we learned to reverse an array using different techniques. We learned to use for-loop, swapping items,...
code(); //不确定的功能部分,提取出来,通过抽象方法实现 long end = System.currentTimeMillis(); System.out.println("毫秒是:"+(end-start)); } public abstract void code(); //抽象不确定的功能,让子类复写实现 } class SubDemo extends GetTime{ public void code(){//子类复写功能方法 for(int y...
System.out.println("对应反转字符串为[Array]:"+ reversedStrByArray); String reversedStrByStack = new Reverse(str).reverseByStack(); System.out.println("对应反转字符串为[Stack]:"+ reversedStrByStack); String reversedStrBySort = new Reverse(str).reverseBySort(); System.out.println("对应反转字符...
1.Java 序列化与反序列化 Java序列化是指把Java对象转换为字节序列的过程便于保存在内存、文件、数据库中,ObjectOutputStream类的writeObject()方法可以实现序列化。Java反序列化是指把字节序列恢复为Java对象的过程,ObjectInputStream类的readObject()方法用于反序列化。 序列化与反序列化是让Java对象脱离Java运行环境的...
}//反转数组publicstaticint[] reverseArray(int[] arrays){int[] result =newint[arrays.length];//反转的操作for(inti=0,j = result.length-1;i<arrays.length;i++,j--){//result[] = arrays[i];result[j] = arrays[i]; }returnresult; ...
array 26 //因为array是引用类型的数组 27 // Array.setInt(array,2,120); 28 //static Object get(Object array, int index) 29 //通过Array.get获取数组的值 30 LOGGER.info("通过Array.get获取数组的值"); 31 for(int i = 0; i < 3; i++) { 32 LOGGER.info(Array.get(array,i)); 33 ...
Using a reversed() built-in function. Here, we are using reversed() function to reverse an array. This function returns reversed iterator object ,so we convert it into array by using array.array() function. Below is the Python code given: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 #...
11. Reverse an integer array Write a Java program to reverse an array of integer values. Click me to see the solution 12. Find duplicates in integer array Write a Java program to find duplicate values in an array of integer values. ...
// Java program to Illustrate Reversal of Array// usingreverse() method of Collections class// Importing utility classesimportjava.util.*;// Main classpublicclassGFG{// Main driver methodpublicstaticvoidmain(String[] args){// Creating input integer arrayInteger arr[] = {10,20,30,40,50};/...
GeneratePayload(Reverse_Payload(),"obj"); payloadTest("obj"); } public static void GeneratePayload(Object instance, String file) throws Exception { //将构造好的payload序列化后写入文件中 File f = new File(file); ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(f)); ...