从文件java中添加单词

Question

如何从使用java的文件添加单词？

Answer 1

你只是将它与其中一个孩子比较。

for(int i=0; i<rootChildren.length; i++){ 
        Node rootChild = rootChildren[i]; 
        //see if the addChar1 already exists in the tree 
        //if it doesn't 

        if(!rootChild.equals(addChar1)){ 
         //add the addChar1 as a child of the root 
         root.addChild(addChar1); 

        } 
        else{ 
         System.out.println(addChar1.getItem() + " Exists in the tree already"); 
        } 

在它不等于第一个孩子后已添加它。你想看看它是否等于任何一个孩子。你可以做的是这样的：

int equalsnrofchildren = 0; 
    for(Node rootChild : rootChildren){//loops through all the children 
         //see if the addChar1 already exists in the tree 
         //if it doesn't 

         if(rootChild.equals(addChar1)){ 
          equalsnrofchildren++; 

         } 
    } 

    if(equalsnrofchildren == 0){ 
    root.addChild(addChar1); 
    }else{ 
System.out.println("already exists.."); 
}