Java Program on Character Wrapper Class
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Program 1
package dataflair; public class TestCharacter { public static void main(String[] args) { // Character C1=new Character('A'); // Character C2=97; // System.out.println(C1); // System.out.println(C2); // System.out.println(Character.isLetter('A')); //true // System.out.println(Character.isLetter('a')); //true // System.out.println(Character.isLetter(65)); //true // System.out.println(Character.isLetter(99)); //true // System.out.println(Character.isLetter('6')); //false // System.out.println(Character.isLetter('@')); //false // System.out.println(Character.isDigit('9')); // System.out.println(Character.isDigit('\n')); // System.out.println(Character.isDigit('@')); // System.out.println(Character.isDigit('A')); // System.out.println(Character.isLetterOrDigit('A')); // true // System.out.println(Character.isLetterOrDigit('8'));// true // System.out.println(Character.isLetterOrDigit('#'));//false // System.out.println(Character.isLetterOrDigit('\t'));//false // System.out.println(Character.isWhitespace('\n')); // System.out.println(Character.isWhitespace('\t')); // System.out.println(Character.isWhitespace(' ')); // // System.out.println(Character.isWhitespace('A')); // System.out.println(Character.isWhitespace('9')); // System.out.println(Character.isWhitespace('#')); // System.out.println(Character.isUpperCase('9')); // System.out.println(Character.isUpperCase('@')); // System.out.println(Character.isLowerCase('A')); // System.out.println(Character.isLowerCase('a')); // System.out.println(Character.toLowerCase('a')); // System.out.println(Character.toUpperCase('N')); //System.out.println(Character.isSpaceChar('\t')); String str="abc123_456hello778 # @ * bye"; int dg=0,lt=0,sc=0,sp=0; char ch; for(int i=0;i<str.length();i++) { ch=str.charAt(i); if(Character.isLetter(ch)) lt++; else if(Character.isDigit(ch)) dg++; else if(Character.isSpaceChar(ch)) sp++; else sc++; } System.out.println("Total Letter: "+lt); System.out.println("Total Digit: "+dg); System.out.println("Total Space: "+sp); System.out.println("Total Special Chracter: "+dg); } }
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