Java Stack add(Object)用法及代碼示例

Stack Class的add(Object)方法將指定的元素追加到此Stack的末尾。

用法:

boolean add(Object element)

參數：此函數接受單個參數element ，如上麵的語法所示。該參數指定的元素將附加到堆棧的末尾。

返回值：成功執行後，此方法返回True，否則返回False。

以下示例程序旨在說明java.util.Stack.add(Object element)方法的用法：

示例1:

// Java code to illustrate boolean add(Object element) 
import java.util.*; 
  
public class StackDemo { 
    public static void main(String args[]) 
    { 
  
        // Creating an empty Stack 
        Stack<String> stack 
            = new Stack<String>(); 
  
        // Use add() method 
        // to add elements in the Stack 
        stack.add("Geeks"); 
        stack.add("for"); 
        stack.add("Geeks"); 
        stack.add("10"); 
        stack.add("20"); 
  
        // Output the present Stack 
        System.out.println("The Stack is: "
                           + stack); 
  
        // Adding new elements to the end 
        stack.add("Last"); 
        stack.add("Element"); 
  
        // Printing the new Stack 
        System.out.println("The new Stack is: "
                           + stack); 
    } 
}

輸出：

The Stack is: [Geeks, for, Geeks, 10, 20]
The new Stack is: [Geeks, for, Geeks, 10, 20, Last, Element]

示例2:

// Java code to illustrate 
// boolean add(Object element) 
  
import java.util.*; 
  
public class StackDemo { 
    public static void main(String args[]) 
    { 
  
        // Creating an empty Stack 
        Stack<Integer> stack 
            = new Stack<Integer>(); 
  
        // Use add() method 
        // to add elements in the Stack 
        stack.add(10); 
        stack.add(20); 
        stack.add(30); 
        stack.add(40); 
        stack.add(50); 
  
        // Output the present Stack 
        System.out.println("The Stack is: "
                           + stack); 
  
        // Adding new elements to the end 
        stack.add(100); 
        stack.add(200); 
  
        // Printing the new Stack 
        System.out.println("The new Stack is: "
                           + stack); 
    } 
}

輸出：

The Stack is: [10, 20, 30, 40, 50]
The new Stack is: [10, 20, 30, 40, 50, 100, 200]

相關用法

注：本文由純淨天空篩選整理自Code_r大神的英文原創作品 Stack add(Object) method in Java with Example。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。