本文主要是介绍[Java SE]数组超界异常分析(IndexOutOfBoundsException/ArrayIndexOutOfBoundsException),对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
import org.junit.Test;
import java.util.ArrayList;
/**
* @author: Johnny
* @date: 2021/11/12 11:17:24
* @description: 测试数组超界异常 IndexOutOfBoundsException ArrayIndexOutOfBoundsException
* https://blog.csdn.net/be_happy_mr_li/article/details/53302411
*/
public class ArrayExceptionTest {
@Test
public void test004() {
ArrayList<String> array = new ArrayList<String>();
array.add(0,"hello world");
array.add(1,"hello world");
int index = array.indexOf("22"); //-1
System.out.println(index);
//array.set(index,"hello world"); //java.lang.ArrayIndexOutOfBoundsException: -1
array.add(index,"hello world");//java.lang.IndexOutOfBoundsException: Index: -1, Size: 2
}
@Test
public void test003() {
ArrayList<String> array = new ArrayList<String>();
array.set(0,"hello world");//java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
}
@Test
public void test002() {
ArrayList<String> array = new ArrayList<String>();
//array.add(0,"hello world");//正常
array.add(1,"hello world");//java.lang.IndexOutOfBoundsException: Index: 1, Size: 0
}
}
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