Java Stack equals()用法及代碼示例

Java中的Stack類的Java.util.Stack.equals(Object obj)方法用於驗證Object與Stack的相等性並進行比較。僅當兩個Stack包含相同順序的相同元素時，列表才返回true。

用法:

first_Stack.equals(second_Stack)

參數：此方法接受強製性參數second_Stack，該參數表示第二個要與第一個堆棧進行比較的堆棧。

返回值：如果相等相等且對象和Stack相等，則該方法返回true，否則返回false。

以下程序用於說明java.util.Stack.elements()方法的用法：

示例1:

// Java code to illustrate the equals() method 
import java.util.*; 
  
public class Stack_Demo { 
    public static void main(String[] args) 
    { 
  
        // Creating an empty Stack 
        Stack<String> stack1 = new Stack<String>(); 
  
        // Inserting elements into the table 
        stack1.add("Geeks"); 
        stack1.add("4"); 
        stack1.add("Geeks"); 
        stack1.add("Welcomes"); 
        stack1.add("You"); 
  
        // Displaying the Stack 
        System.out.println("The Stack is: "
                           + stack1); 
  
        // Creating an empty Stack 
        Stack<String> stack2 = new Stack<String>(); 
  
        // Inserting elements into the table 
        stack2.add("Geeks"); 
        stack2.add("4"); 
        stack2.add("Geeks"); 
        stack2.add("Welcomes"); 
        stack2.add("You"); 
  
        // Displaying the Stack 
        System.out.println("The Stack is: "
                           + stack2); 
  
        System.out.println("Are both of them equal? "
                           + stack1.equals(stack2)); 
    } 
}

輸出：

The Stack is: [Geeks, 4, Geeks, Welcomes, You]
The Stack is: [Geeks, 4, Geeks, Welcomes, You]
Are both of them equal? true

示例2:

// Java code to illustrate the equals() method 
import java.util.*; 
  
public class Stack_Demo { 
    public static void main(String[] args) 
    { 
  
        // Creating an empty Stack 
        Stack<Integer> stack1 = new Stack<Integer>(); 
  
        // Inserting elements into the table 
        stack1.add(10); 
        stack1.add(15); 
        stack1.add(20); 
        stack1.add(25); 
        stack1.add(30); 
  
        // Displaying the Stack 
        System.out.println("The Stack is: " + stack1); 
  
        // Creating an empty Stack 
        Stack<Integer> stack2 = new Stack<Integer>(); 
  
        // Inserting elements into the table 
        stack2.add(10); 
        stack2.add(15); 
        stack2.add(20); 
        stack2.add(25); 
        stack2.add(30); 
        stack2.add(40); 
  
        // Displaying the Stack 
        System.out.println("The Stack is: " + stack2); 
  
        System.out.println("Are both of them equal? "
                           + stack1.equals(stack2)); 
    } 
}

輸出：

The Stack is: [10, 15, 20, 25, 30]
The Stack is: [10, 15, 20, 25, 30, 40]
Are both of them equal? false

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 equals() 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。