Java.lang.Character.isISOControl() Method



The java.lang.Character.isISOControl(int codePoint) determines if the referenced character (Unicode code point) is an ISO control character. A character is considered to be an ISO control character if its code is in the range '\u0000' through '\u001F' or in the range '\u007F' through '\u009F'.


Following is the declaration for java.lang.Character.isISOControl() method

public static boolean isISOControl(int codePoint)


codePoint − the character (Unicode code point) to be tested

Return Value

This method returns true if the character is an ISO control character, false otherwise.




The following example shows the usage of lang.Character.isISOControl() method.

package com.tutorialspoint;

import java.lang.*;

public class CharacterDemo {

   public static void main(String[] args) {

      // create 2 int primitives cp1, cp2
      int cp1, cp2;

      // assign values to cp1, cp2
      cp1 = 0x008f;
      cp2 = 0x0123;

      // create 2 boolean primitives b1, b2
      boolean b1, b2;

      // assign isISOControl results of cp1, cp2 to b1, b2
      b1 = Character.isISOControl(cp1);
      b2 = Character.isISOControl(cp2);

      String str1 = "cp1 is an ISO control character is " + b1;
      String str2 = "cp2 is an ISO control character is " + b2;

      // print b1, b2 values
      System.out.println( str1 );
      System.out.println( str2 );

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

cp1 is an ISO control character is true
cp2 is an ISO control character is false