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package com.yz.mystack;
public class Stack {
Object[] datas;
Integer n=0;
Integer N=1;
public Stack(){
datas=new Object[N];
}
public void push(Object data){
if(n>=N){
N+=2;
Object[] temps=datas;
datas=new Object[N];
for(int i=0;i<temps.length;i++){
datas[i]=temps[i];
}
}
datas[n++]=data;
}
public Object peek(){
return datas[n-1];
}
public Object pop(){
if(--n>=0){
return datas[n];
}
return 0;
}
public static void main(String[] args){
Stack stack=new Stack();
stack.push("aa");
stack.push("bb");
stack.push("cc");
System.out.println(stack.pop());
System.out.println(stack.pop());
System.out.println(stack.pop());
System.out.println(stack.pop());
}
}
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package com.yz.mylink;
public class Student {
private Integer id;
private String name;
private Integer age;
private String classes;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = i ......
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OutputStreamWriter out = ...
java.sql.Connection conn =& ......
½¨Á¢½ÚµãÀà(Node.java)
package com.yz.mystack;
public class Node {
Object data;
Node next;
public Node(Object data){
this.data=data;
next=null;
}
public Object getData() {
return data;
}
public void setData(Object data) {
this.data = data;
}
public Node getNext() {
......