// 1. REMOVING UNWANTED SPACE
    // 2. CAPITALIZE EACH WORD

package taskPkg;

import java.util.Scanner;

public class PlayingWithCharAr {

	public static void main(String[] args) {
		// 1. REMOVING UNWANTED SPACE
		// 2. CAPITALIZE EACH WORD
		Scanner scn = new Scanner(System.in);
		System.out.println("Enter a sentence...");
		String sentence = scn.nextLine();
		scn.close();
		char[] sen = sentence.toCharArray();
		PlayingWithCharAr obj = new PlayingWithCharAr();
		obj.removeSpace(sen);
		obj.wordStartWithCaps(sen);
	}

	private void removeSpace(char[] words) {
		int k = 0, n = words.length;
		System.out.print("Removed unwanted spaces :");
		while (k < n && words[k] == ' ')
			k++;
		for (; k < n - 1; k++) {
			if (!(words[k] == ' ' && words[k + 1] == ' '))
				System.out.print(words[k]);
		}
		if (words[n - 1] != ' ')
			System.out.print(words[n - 1]);
		System.out.println();
	}

	private void wordStartWithCaps(char[] words) {
		int i = 0, n = words.length;
		System.out.print("Capitalize Each Word :");
		if (words[i] != ' ')
			System.out.print((char) (words[i] - 32));
		for (i = 1; i < n; i++) {
			if (words[i - 1] == ' ' && words[i] != ' ' && (words[i] >= 'a' && words[i] <= 'z'))
				System.out.print((char) (words[i] - 32));
			else
				System.out.print(words[i]);
		}
	}

}

package taskPkg;
import java.util.Scanner;
public class ArraysBasics {
//1. PRINTING 1ST LETTER OF THE CHAR ARRAY
//2. PRINT REVERSED A CHAR ARRAY	
//3. 
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		ArraysBasics obj = new ArraysBasics();
		Scanner scn = new Scanner(System.in);
		System.out.println("Enter a name to find its first and Last Letter.");
		String nam =  scn.next();
		char[] name = nam.toCharArray();
		System.out.println("First Letter of "+nam+" is repeated at "+obj.findFirstLtr(name));
		System.out.println("Last Letter of "+nam+" is repeated at "+obj.findLastLtr(name));
		obj.printReversedArray(name);
		System.out.println();  
		
		String[] cricketers = {"Rohit","Suryakumar","Ashwin", "Jadeja","Yashasvi"}; 
		int[] scores = {100,120,86,102,98};
		System.out.println("Enter one cricketer name to get his high score");
		String givenName = scn.next();
		System.out.println("Score for " + givenName+  " is "+obj.getScore(cricketers,scores,givenName));
		
		
	}
	private int findFirstLtr(char name[]) {
		char ch = name[0];
		for (int i=1; i<name.length; i++) {
			if (ch==name[i]) return i;
		}
		return -1;
	}
	private int findLastLtr(char name[]) {
		char ch = name[name.length-1];
		for (int i=0; i<name.length-1; i++) {
			if (ch==name[i]) return i;
		}
		return -1;
	}
	private void printReversedArray(char[] name) {
		System.out.println("Reversed Array = ");
		for (int i=name.length-1; i>=0; i--) {
			System.out.println(" "+name[i]);
		}
	}
	private int getScore(String[] name, int[] score, String givenName) {
		int n = name.length;
		for(int i=0; i<n; i++) {
			if(name[i].equals(givenName)) return score[i];
		}
		return 0;
	}
	
}