每个单词间一个空格，首字母大写_英文句子中间有空格后的第一个字母要大写-优快云博客

本文介绍了一种使用Java进行字符串处理的方法，包括去除多余空格并将每个单词首字母大写的功能。通过两个定制的方法：deleteBlank和changeFirstAlphabet，实现了标准化字符串格式的目标。

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//First,change the words to the standard form,where every word is separated by only one blank
//Second,change every word's first alphabet to the upper
import java.util.*;
import java.lang.*;
class Deal{
	String deleteBlank(String words){
		int flag=0;
		words=words.trim();
		StringTokenizer temp = new StringTokenizer(words," ");
		String result=new String("");
		while(temp.hasMoreTokens()){
			if(flag==1)
				result+=" ";
			result+=temp.nextToken();
			flag=1;
		}
		return result;
	}
	String changeFirstAlphabet(String words){
		int in=0;
		char array[]=words.toCharArray();
		for(int i=0;i<array.length;i++){
			if(array[i]!=' '){
				if(in==0&&Character.isLowerCase(array[i]))
					array[i]=Character.toUpperCase(array[i]);
				in=1;
			}
			else
				in=0;
		}
		String result=new String(array);
		return result;
	}

}
class FirstAlphabetUpper{
	public static void main(String []args){
		String words;;
		Scanner reader = new Scanner(System.in);
		Deal deal = new Deal();  
		words=reader.nextLine();
		words=deal.deleteBlank(words);
		words=deal.changeFirstAlphabet(words);
		System.out.println(words);
	}
}