java.lang.Character.isWhitespace(char ch) java.lang.Character.isValidCodePoint(int codePoint) java.lang.Character.isWhitespace(int codePoint) java.lang.Character.isWhitespace(char ch) package com.codingdict; import java.lang.*; public class CharacterDemo { public static void main(String[] args) { // create 2 char primitives ch1, ch2 char ch1, ch2; // assign values to ch1, ch2 ch1 = ' '; ch2 = '\f'; // create 2 boolean primitives b1, b2 boolean b1, b2; /** * check if ch1, ch2 are whitespace characters and * assign results to b1, b2 */ b1 = Character.isWhitespace(ch1); b2 = Character.isWhitespace(ch2); String str1 = "ch1 is a Java whitespace character is " + b1; String str2 = "ch2 is a Java whitespace character is " + b2; // print b1, b2 values System.out.println( str1 ); System.out.println( str2 ); } } java.lang.Character.isValidCodePoint(int codePoint) java.lang.Character.isWhitespace(int codePoint)