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Java 2021-09-04 00:51:02
leetcode 46 problem permutation in java
public ArrayList<ArrayList<Integer>> permute(int[] num) { ArrayList<ArrayList<Integer>> result = new ArrayList<ArrayList<Integer>>(); //start from an empty list result.add(new ArrayList<Integer>()); &nbs... Add solution -
Java 2021-09-03 04:18:01
java Iterable to list
@Test public void whenConvertIterableToListUsingJava8_thenSuccess() { List<String> result = new ArrayList<String>(); iterable.forEach(result::add); assertThat(result, contains("john", "tom", "jane")); } Add solution -
TypeScript 2021-09-01 01:37:03
how to add elements in string array in java
ArrayList<String> ar = new ArrayList<String>(); String s1 ="Test1"; String s2 ="Test2"; String s3 ="Test3"; ar.add(s1); ar.add(s2); ar.add(s3); String s4 ="Test4"; ar.add(s4); Add solution -
Java 2021-09-01 01:37:03
javascrpt loop array
import java.io.IOException; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Map.Entry; import java.util.Set; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; im... Add solution -
Other 2021-08-30 18:34:02
java.lang.indexoutofboundsexception: index: 0, size: 0
The problem is that you are using set method to update element at index 0 set(index,value) method needs an element to present at that index but you haven't added any element at that position in medium arraylist before that . So you need to first add an... Add solution
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