Question

如何使用java将Java is an object oriented programming language输出，并且计算出单词的平均长度

Answer 1

写个最短的吧
public class Temp {
public static void main(String[] args){
String string = "Java is an object oriented programming language";
String[] words = string.split(" ");
System.out.println("语句：" + string);
System.out.println("单词平均长度：" + (string.replace(" ","").length()/words.length));
}
}

Answer 2

import java.util.regex.Pattern;

public class Test {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
String msg = "Java is an object oriented programming language";
String regex = " ";//正则表达式，一个空格，用以分隔字符串
String s ="";
String[] str = null;//字符数组，用以存放分隔后的各个单词
Pattern p = Pattern.compile(regex);
str = p.split(msg);
int num = str.length;
System.out.println("一共有" + num + "个单词。");
int length = msg.trim().length();//将字符串msg去掉空格后的长度
int len = length / num;
System.out.println("单词的平均长度为：" + len);
}

}

Answer 3

String string = "Java is an object oriented programming language";
String[] tokens = string.split(" ");
int cnt = 0;
for(int i = 0; i < tokens.length; i++) {
cnt += tokens[i].length();
}

System.out.println("inputed String : " + string);
System.out.println("average length : " + (cnt/tokens.length));

Answer 4

先以空格分段开长字符串,然后再得相应的长度,求平均值