小编pej*_*eja的帖子

所以我很困惑,需要一个建议.在Java中,我可以实现自己的Stack,或者我可以使用java.util提供的Stack.

手册:

public class stack {

private int maxSize; //max size of stack
private char[] stackArray;
private int top; //index poistion of last element

public stack(int size){
    this.maxSize=size;

    this.stackArray=new char[maxSize];
    this.top=-1; //    
}


public void push(char j){

    if (isFull()) {
        System.out.println("SORRY I CANT PUSH MORE");
    }else{

    top++;
    stackArray[top]=j;
    }
}

public char pop(){

    if(isEmpty()){
        System.out.println("Sorry I cant pop more!");
        return '0';
    }else{

       int oldTop=top;
    top--;
    return stackArray[oldTop];

    }
}


public char peek(){
    if(!isEmpty()) {
        return stackArray[top];
    }
}


public boolean …