Codes For Reference

Simple Java program to count words starting with capital letters in given line Code: import java.util.Scanner; class p83{public static void main(String args[]){ Scanner sc=new Scanner(System.in); String s; System.out.println("Enter a line:"); s=sc.nextLine(); int count=0; for(String str: s.split(" ")) { if(str.charAt(0)>=65 && str.charAt(0)<=90) { count++; } } System.out.println("total number of words start with capital letters are :"+count); }}

Simple Java program to calculate the number of consonants and vowels present in given line Code: import java.util.Scanner; class p82{public static void main(String args[]){ String s = new String(); int co=0,cs=0; Scanner sc = new Scanner(System.in); s=sc.nextLine(); for(int i=0;i<s.length();i++){ char c = s.charAt(i); if(c=='a'||c=='e'||c=='i'||c=='o'||c=='u'||c=='A'||c=='E'||c=='I'||c=='O'||c=='U'){co++;} else if(!(c=='a'||c=='e'||c=='i'||c=='o'||c=='u'||c=='A'||c=='E'||c=='I'||c=='O'||c=='U') && ((c>=65 && c<=90) || (c>=97 && c<=122))){cs++;} } System.out.println("Vowels: "+co); System.out.println("Consonant: "+cs); }}

Simple Java program to implement concept of Abstract Class Code: abstract class phone{ void rearcamera(){System.out.println("Capturing from rear camera");} void rflesh(){System.out.println("Capturing from rear camera");} void frontcamera(){System.out.println("Capturing from front camera");} abstract void fflesh(); } class model extends phone { void fflesh(){System.out.println("No front flesh available");} } class abstracte{ public static void main(String arg[]){ model e70 = new model(); e70.rearcamera();e70.rflesh();e70.frontcamera();e70.fflesh(); } }

Simple Java program to use Final Keyword on following items: Variable Class Method Code: class a{ final int a=5; void setfinala(int x) { a=x; } final void finalmethod() { System.out.println("Final method."); } } class a1 extends a{ void finalmethod() { System.out.println("Final method in extended class."); } } final class b{ } class c extends b{ } class p33{ public static void main(String args[]){ a obj = new a(); a.setfinala(3); } } Note: The program won't run because of error and that error is output of our program.

Simple Java program to implement use of Inner Class Code: class Outer{ private int data=30; class Inner{ void msg(){System.out.println("data is "+data);} } } class innersample{ public static void main(String args[]){ Outer obj=new Outer(); Outer.Inner in=obj.new Inner(); in.msg(); } }