Java Modifier isTransient(mod)方法及示例

java.lang.reflect.Modifier 的 isTransient(mod) 方法用于检查整数参数是否包括瞬态修饰符。如果这个整数参数代表瞬时类型的修改器，那么该方法返回true，否则返回false。

语法

public static boolean isTransient(int mod)

参数： 该方法接受一个整数名称，因为mod代表一组修改器。

返回 ：如果mod包括瞬态修改器，该方法返回true；否则返回false。

下面的程序说明了isTransient()方法：
程序1 :

// Java program to illustrate isTransient() method
  
import java.lang.reflect.*;
  
public class GFG {
  
    public static transient int number = 1000;
  
    public static void main(String[] args)
        throws NoSuchFieldException,
               SecurityException
    {
  
        // get Field class object
        Field field
            = GFG
                  .class
                  .getDeclaredField("number");
  
        // get Modifier Integer value
        int mod = field.getModifiers();
  
        // check Modifier is transient or not
        boolean result
            = Modifier.isTransient(mod);
  
        System.out.println("Mod integer value "
                           + mod + " is transient : "
                           + result);
    }
}

输出。

Mod integer value 137 is transient : true

程序2

// Java program to illustrate isTransient()
  
import java.io.Serializable;
import java.lang.reflect.*;
  
public class GFG {
  
    public static void main(String[] args)
        throws NoSuchFieldException,
               SecurityException
    {
  
        // get Field class object
        Field field
            = GFGTest
                  .class
                  .getDeclaredField("password");
  
        // get Modifier Integer value
        int mod = field.getModifiers();
  
        // check Modifier is transient or not
        boolean result = Modifier.isTransient(mod);
  
        System.out.println("Mod integer value "
                           + mod
                           + " is transient : "
                           + result);
    }
  
    // A sample class that uses a transient keyword to
    // skip their serialization.
    class GFGTest implements Serializable {
  
        // Making password transient for security
        private transient String password;
  
        // other code
    }
}

输出。

Mod integer value 130 is transient : true

**参考文献: ** https://docs.oracle.com/javase/10/docs/api/java/lang/reflect/Modifier.html#isTransient(int)