package com.index;
import java.util.ArrayList;
import java.util.List;
public class ListIndexTest {
/**
* @param args
*/
public static void main(String[] args) {
List<String> list = new ArrayList<String>();
int indexOf = 0;
try {
indexOf = list.indexOf("test");
System.out.println(list.remove(indexOf));
} catch (ArrayIndexOutOfBoundsException e) {
e.printStackTrace();
}
try {
// avoiding exception by condition check.
indexOf = list.indexOf("test");
if(indexOf >= 0){
System.out.println(indexOf + " "+ list.remove(indexOf));
}else{
System.out.println("index of test : "+indexOf);
}
} catch (ArrayIndexOutOfBoundsException e) {
e.printStackTrace();
}
list.add("test");
list.add("rest");
list.add("quest");
list.add("test");
indexOf = list.indexOf("test");
System.out.println(indexOf + " "+ list.remove(indexOf));
indexOf = list.indexOf("test");
if(indexOf >= 0){
System.out.println(indexOf + " "+ list.remove(indexOf));
}
}
}
output:
java.lang.ArrayIndexOutOfBoundsException: -1
at java.util.ArrayList.elementData(ArrayList.java:371)
at java.util.ArrayList.remove(ArrayList.java:448)
at com.index.ListIndexTest.main(ListIndexTest.java:17)
index of test : -1
0 test
2 test
import java.util.ArrayList;
import java.util.List;
public class ListIndexTest {
/**
* @param args
*/
public static void main(String[] args) {
List<String> list = new ArrayList<String>();
int indexOf = 0;
try {
indexOf = list.indexOf("test");
System.out.println(list.remove(indexOf));
} catch (ArrayIndexOutOfBoundsException e) {
e.printStackTrace();
}
try {
// avoiding exception by condition check.
indexOf = list.indexOf("test");
if(indexOf >= 0){
System.out.println(indexOf + " "+ list.remove(indexOf));
}else{
System.out.println("index of test : "+indexOf);
}
} catch (ArrayIndexOutOfBoundsException e) {
e.printStackTrace();
}
list.add("test");
list.add("rest");
list.add("quest");
list.add("test");
indexOf = list.indexOf("test");
System.out.println(indexOf + " "+ list.remove(indexOf));
indexOf = list.indexOf("test");
if(indexOf >= 0){
System.out.println(indexOf + " "+ list.remove(indexOf));
}
}
}
output:
java.lang.ArrayIndexOutOfBoundsException: -1
at java.util.ArrayList.elementData(ArrayList.java:371)
at java.util.ArrayList.remove(ArrayList.java:448)
at com.index.ListIndexTest.main(ListIndexTest.java:17)
index of test : -1
0 test
2 test
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