While I was playing with Java code, I have coded a class that has method that finds longest String in the ArrayList. Method is very simple, but I am sure that some of you will find it useful.
So here it is:
// I have a class attribute:
private ArrayList wordsList = new ArrayList();
// here is method itself:
public String longest_word(){
String longest_word="";
int maxLength=0;
for(int i=0; i
if(wordsList.get(i).length() > maxLength){
maxLength = wordsList.get(i).length();
longest_word = wordsList.get(i);
}
}
return longest_word;
}
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It’s better to use iterators for this type of work. Because if your array is a LinkedList instance, using get(i) will have a negative effect on performance.
If you are using JDK 6 – you can use short for-statement:
[sourcecode language=”java”]
for(String w: wordList) {
if( w.length() > maxLength ) maxLength = w.length();
}
[/sourcecode]
this works too
public int maxLength(ArrayListlist){
int max=0;
for(int i=0; i<=list.size()-1; i++){
if(list.get(i).length()<max){
max=list.get(i).length();
}
}
return max;
}