Java AbstractSequentialList equals()用法及代碼示例

java.util.AbstractSequentialList類的equals()方法用於檢查此AbstractSequentialList對象是否等於作為參數傳遞的對象。此方法返回一個聲明相同的布爾值。

用法:

public boolean equals(Object o)

參數：此方法將對象o作為要與該列表進行相等性比較的參數。

返回值：如果指定對象等於此列表，則此方法返回true。

以下示例說明了equals()方法。

範例1：

// Java program to demonstrate equals() 
// method of AbstractSequentialList 
  
import java.util.*; 
  
public class GFG { 
    public static void main(String[] argv) 
    { 
  
        // Creating object of AbstractSequentialList<String> 
        AbstractSequentialList<String> 
            arrlist1 = new LinkedList<String>(); 
  
        // Populating arrlist1 
        arrlist1.add("A"); 
        arrlist1.add("B"); 
        arrlist1.add("C"); 
        arrlist1.add("D"); 
        arrlist1.add("E"); 
  
        // print arrlist1 
        System.out.println("First AbstractSequentialListlist:"
                           + arrlist1); 
  
        // Creating another object of AbstractSequentialList<String> 
        AbstractSequentialList<String> 
            arrlist2 = new LinkedList<String>(); 
  
        // Populating arrlist2 
        arrlist2.add("A"); 
        arrlist2.add("B"); 
        arrlist2.add("C"); 
        arrlist2.add("D"); 
        arrlist2.add("E"); 
  
        // print arrlist2 
        System.out.println("Second AbstractSequentialList:"
                           + arrlist2); 
  
        // comparing first AbstractSequentialList to another 
        // using equals() method 
        boolean value 
            = arrlist1.equals(arrlist2); 
  
        // print the value 
        System.out.println("Are both list equal:"
                           + value); 
    } 
}

輸出：

First AbstractSequentialListlist:[A, B, C, D, E]
Second AbstractSequentialList:[A, B, C, D, E]
Are both list equal:true

範例2：

// Java program to demonstrate equals() 
// method of AbstractSequentialList 
  
import java.util.*; 
  
public class GFG1 { 
    public static void main(String[] argv) 
    { 
  
        // Creating object of AbstractSequentialList 
        AbstractSequentialList<Integer> 
            arrlist1 = new LinkedList<Integer>(); 
  
        // Populating arrlist1 
        arrlist1.add(10); 
        arrlist1.add(20); 
        arrlist1.add(30); 
        arrlist1.add(40); 
        arrlist1.add(50); 
  
        // print arrlist1 
        System.out.println("First AbstractSequentialListlist:"
                           + arrlist1); 
  
        // Creating another object of AbstractSequentialList 
        AbstractSequentialList<Integer> 
            arrlist2 = new LinkedList<Integer>(); 
  
        // Populating arrlist2 
        arrlist2.add(10); 
        arrlist2.add(20); 
        arrlist2.add(30); 
  
        // print arrlist2 
        System.out.println("Second AbstractSequentialList:"
                           + arrlist2); 
  
        // comparing first AbstractSequentialList to another 
        // using equals() method 
        boolean value = arrlist1.equals(arrlist2); 
  
        // print the value 
        System.out.println("Are both list equal:"
                           + value); 
    } 
}

輸出：

First AbstractSequentialListlist:[10, 20, 30, 40, 50]
Second AbstractSequentialList:[10, 20, 30]
Are both list 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 AbstractSequentialList 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。