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Java AbstractSequentialList equals()用法及代码示例


java.util.AbstractSequentialList类的equals()方法用于检查此AbstractSequentialList对象是否等于作为参数传递的对象。此方法返回一个声明相同的布尔值。

用法:

public boolean equals(Object o)

参数:此方法将对象o作为要与该列表进行相等性比较的参数。


返回值:如果指定对象等于此列表,则此方法返回true。

以下示例说明了equals()方法。

范例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); 
    } 
}
输出:
First AbstractSequentialListlist:[A, B, C, D, E]
Second AbstractSequentialList:[A, B, C, D, E]
Are both list equal:true

范例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); 
    } 
}
输出:
First AbstractSequentialListlist:[10, 20, 30, 40, 50]
Second AbstractSequentialList:[10, 20, 30]
Are both list equal:false


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注:本文由纯净天空筛选整理自Code_r大神的英文原创作品 AbstractSequentialList equals() 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。