Java ThreadLocal remove() Method

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Description

The Java ThreadLocal remove() method removes the current thread's value for this thread-local variable.

Declaration

Following is the declaration for java.lang.ThreadLocal.remove() method

public void remove()

Parameters

NA

Return Value

This method does not return any value.

Exception

NA

Example: Removing an Integer Value from ThreadLocal Object

The following example shows the usage of Java ThreadLocal remove() method. In this program, we've initialized a ThreadLocal object. Using set() method, a value is assigned to ThreadLocal object and using get() method, value is retrieved and printed. Using remove() method, the current value is removed and using get(), value is retrieved and result is printed.

package com.tutorialspoint;

public class ThreadLocalDemo {

   public static void main(String[] args) {

      ThreadLocal<Integer> tlocal = new ThreadLocal<>();  

      tlocal.set(100);
      // returns the current thread's value
      System.out.println("value = " + tlocal.get());
      // remove the current value
      tlocal.remove();
      // returns the current thread's value of 
      System.out.println("value = " + tlocal.get());
   }
} 

Output

Let us compile and run the above program, this will produce the following result −

value = 100
value = null

Example: Removing a Double Value from ThreadLocal Object

The following example shows the usage of Java ThreadLocal remove() method. In this program, we've initialized a ThreadLocal object. Using set() method, a value is assigned to ThreadLocal object and using get() method, value is retrieved and printed. Using remove() method, the current value is removed and using get(), value is retrieved and result is printed.

package com.tutorialspoint;

public class ThreadLocalDemo {

   public static void main(String[] args) {

      ThreadLocal<Double> tlocal = new ThreadLocal<>();  

      tlocal.set(100.0);
      // returns the current thread's value
      System.out.println("value = " + tlocal.get());
      // remove the current value
      tlocal.remove();
      // returns the current thread's value of 
      System.out.println("value = " + tlocal.get());
   }
} 

Output

Let us compile and run the above program, this will produce the following result −

value = 100.0
value = null

Example: Removing a String Value from ThreadLocal Object

The following example shows the usage of Java ThreadLocal remove() method. In this program, we've initialized a ThreadLocal object. Using set() method, a value is assigned to ThreadLocal object and using get() method, value is retrieved and printed. Using remove() method, the current value is removed and using get(), value is retrieved and result is printed.

package com.tutorialspoint;

public class ThreadLocalDemo {

   public static void main(String[] args) {

      ThreadLocal<String> tlocal = new ThreadLocal<>();  

      tlocal.set("100");
      // returns the current thread's value
      System.out.println("value = " + tlocal.get());
      // remove the current value
      tlocal.remove();
      // returns the current thread's value of 
      System.out.println("value = " + tlocal.get());
   }
} 

Output

Let us compile and run the above program, this will produce the following result −

value = 100
value = null