📜  Java中的字符.equals() 方法及示例

📅  最后修改于: 2022-05-13 01:55:33.561000             🧑  作者: Mango

Java中的字符.equals() 方法及示例

Java.lang。 字符 .equals()是Java中的一个函数,用于将此对象与指定对象进行比较。如果参数不为 null,则结果为 true,并且是一个字符对象,表示与该对象相同的 char 值。

句法:

public boolean equals(Object obj)

参数:该函数接受一个参数obj ,它指定要与之比较的对象。

返回值:函数返回一个布尔值。如果对象相同,则返回 true,否则返回 false。

下面的程序说明了上述方法:

方案一:

// Java program to demonstrate the function
// Character.equals() when two objects are same
import java.lang.*;
  
public class gfg {
  
    public static void main(String[] args)
    {
  
        // assign values to c1, c2
        Character c1 = new Character('Z');
        Character c2 = new Character('Z');
  
        // assign the result of equals method on c1, c2 to res
        boolean res = c1.equals(c2);
  
        // print res value
        System.out.println(c1 + " and " + c2 + " are equal is " + res);
    }
}
输出:
Z and Z are equal is true

方案二:

// Java program to demonstrate function
// when two objects are different
  
import java.lang.*;
  
public class gfg {
  
    public static void main(String[] args)
    {
  
        // assign values to c1, c2
        Character c1 = new Character('a');
        Character c2 = new Character('A');
  
        // assign the result of equals
        // method on c1, c2 to res
        boolean res = c1.equals(c2);
  
        // prints the res value
        System.out.println(c1 + " and " + c2 + " are equal is " + res);
    }
}
输出:
a and A are equal is false

参考:https: Java/lang/ 字符.html#equals(Java.lang.Object)