Java Stack addElement(E)用法及代码示例

堆栈类的addElement(E)方法用于在堆栈末尾将作为参数传递的元素附加到此函数。

用法:

boolean addElement(E obj)

Here, E is the type of elements maintained 
by this container.

参数：该函数接受参数E obj，它是要在堆栈末尾添加的对象。

返回值：如果至少执行了一个附加操作，则该方法返回True，否则返回False。

以下示例程序旨在说明Java.util.Stack.addElement()方法：

示例1:

// Java code to illustrate boolean addElement() 
  
import java.util.*; 
import java.util.ArrayList; 
  
public class GFG { 
    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"); 
  
        // Displaying the Stack 
        System.out.println("The Stack is: " + stack); 
  
        // Appending "GeeksForGeeks" to the Stack 
        stack.addElement("GeeksForGeeks"); 
  
        // Clearing the Stack using clear() and displaying 
        System.out.println("The new Stack is: " + stack); 
    } 
}

输出：

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

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); 
  
        // Displaying the Stack 
        System.out.println("The Stack is: " + stack); 
  
        // Appending 100 to the Stack 
        stack.addElement(100); 
  
        // Clearing the Stack using clear() and displaying 
        System.out.println("The new Stack is: " + stack); 
    } 
}

输出：

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

相关用法

注：本文由纯净天空筛选整理自Code_r大神的英文原创作品 Stack addElement(E) method in Java with Example。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。