import java.util.Collections; import java.util.List; public class UnsupportedOperationExceptionExample { public static void main(String[] args) { List<String> unmodifiableList = Collections.unmodifiableList(List.of("a", "b", "c")); try { unmodifiableList.add("d"); // 这将抛出 Unsuppor...
System.out.println("array:"+ Arrays.toString(array)); List<String> list = Arrays.asList(array);//将数组转换为一个List集合 System.out.println("list:"+list); list.set(0,"six"); System.out.println("list:"+list); //对该集合的操作就是对原数组的操作 System.out.println("array:"+ Arra...
list.add("seven");//UnsupportedOperationException
util.AbstractList.add(Unknown … java.lang.UnsupportedOperationException in Canvas I used a custom ImageView in my app. But it shows java.lang.UnsupportedOperationException in the code canvas.clipPath(clipPath). I don't know why I go Scala enum - Java.lang.UnsupportedOperationException 2021年3月...
最近在做一个电子书项目,想要把开源的Shelves+iReader的翻页卷曲等弄到一起,在做卷曲效果时遇到以下问题:java.lang.unsupported operation exception, android.view.GLES20Canvas.clipPath(GLES20Canvas..
在Java中将数组转为集合,会用到Arrays.asList()的方法,然而,这个方法却与我们的预期期望存在一些出入,当用到asList方法将数组转化成List列表时,对得到的List列表进行add()和remove()操作, JVM会抛出异常:java.lang.UnsupportedOperationException异常 Arrays.asList返回的是同样的ArrayList,为什么就不能使用add和remove...
UnsupportedOperationException(Throwable) Constructs a new exception with the specified cause and a detail message of(cause==null ? null : cause.toString())(which typically contains the class and detail message ofcause). C# [Android.Runtime.Register(".ctor","(Ljava/lang/Throwable;)V","")]publi...
ArrayList ['əri list] 数组列表(最常用的集合,重点掌握) HasPrevious ['pri:vjəs] 在…之前 Split [split] 切割 Element ['elimənt] 元素 linked [ liŋkt] 连接的 contains [kən’teinz] 包含 Set [ set] 集合 style [stail] 风格,类型 ...
myList.add( “3”); myList.add( “4”); 以下三种情况都会出现异常: Iterator it = myList.iterator(); while (it.hasNext()) { String value = it.next(); if (value.equals( "3")) { myList.remove(value); // ConcurrentModificationException ...
1. Root Cause ofUnsupportedOperationException As the name implies,UnsupportedOperationExceptionoccurs when a requested operation is not supported in a class or interface. It is a common exception that occurs while working with collections such asList,Queue,SetandMap. For example, if we try to modify...