// Java program to demonstrate // swap() method for IndexOutOfBoundsException import java.util.*; public class GFG1 { public static void main(String[] argv) throws Exception { try { // creating object of List<String> List<String> vector = new ArrayList<String>(); // populate the ...
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整个过程,所谓的容器注册,就是以 beanName为key, BeanDefinition为value,存放到beanDefinitionMap中,该map的类型是ConcurrentHashMap,已经是线程安全了为什么还加synchronized呢?这是因为beanDefinitionNames是一个普通的ArrayList类型线性表,加锁是要保证对beanDefinitionNames的操作以及对beanDefinitionMap操作的数据一致性。
Java在JDK1.5之前都是靠synchronized关键字保证同步的,这种通过使用一致的锁定协议来协调对共享状态的访问,可以确保无论哪个线程持有守护变量的锁,都采用独占的方式来访问这些变量,如果出现多个线程同时访问锁,那第一些线线程将被挂起,当线程恢复执行时,必须等待其它线程执行完他们的时间片以后才能被调度执行,在挂起和恢复...
import java.io.File; import java.io.IOException; import java.util.ArrayList; import net.sf.jasperreports.engine.JRException; import net.sf.jasperreports.engine.util.JRLoader; import net.sf.jasperreports.engine.util.JRSaver; public class SerializedList extends ArrayList { ...
import java.util.ArrayList; import java.util.Collections; public class Main { public static void main(String[] args) { ArrayList<String> arrayList = new ArrayList<String>(); arrayList.add("A"); arrayList.add("B"); arrayList.add("C"); arrayList.add("D"); arrayList.add("E"); System....
List<String> vector = new ArrayList<String>(); // populate the vector vector.add("A"); vector.add("B"); vector.add("C"); vector.add("D"); vector.add("E"); // printing the vector before swap System.out.println("Before swap: " + vector); // swap the elements System.out.pri...
Trying toswapelements more than upper bound index Exception thrown : java.lang.IndexOutOfBoundsException: Index: 5, Size: 5 注:本文由纯净天空筛选整理自RohitPrasad3大神的英文原创作品Collections swap() method in Java with Examples。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载...
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Syntax: public static void swap(List l , int f1, int f2); Parameter(s): List l– represents the list to swap the elements. int f1– represents the index of f1 element to swap with other element f2. int f2– represents the index of f2 element to swap with other element f1. ...