corejava-programming: Program to help Priyanka to generate the PIN

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class CBIPin {
public static void main(String[] args) throws Exception
{
Scanner input=new Scanner(System.in);
int count=0;
List<String> sentences=new ArrayList<String>();
while(count<4){
sentences.add(input.nextLine().trim());
count++;
}

for(String sentence:sentences){
int length=sentence.split(" ").length;
if(length<10){
if(length==1 && sentence.trim().length()<1)
System.out.print(0);
else
System.out.print(length);
}else{
throw new Exception("Invalid Arguments!");
}
}
}
}


Note:
------------------------------
New line space has to be there in case of blank sentences. Like if there is no 4th sentence, input must be like:

Input-
-----------------------------------------
Sentence-1
Sentence-2
Sentence-3

------------------------------------------

instead of

Input-
-----------------------------------------
Sentence-1
Sentence-2
Sentence-3
------------------------------------------

otherwise you have to press enter manually to see the output.

Solution 1: All the sentences takes from console at a time.


import java.util.Scanner;
public class CBIPin {
public static void main(String[] args)
{
Scanner sc=new Scanner(System.in);
String[] s=new String[4];
int sum=0;
for(int i=0;i<s.length;i++)
{
String st=sc.nextLine();
String[] str=st.split("\\s");
if(st.equals(""))
{
System.out.print("0");
}
else
{
for(String w:str)
{
sum=sum+1;
}
System.out.print(sum);
sum=0;
}
}
}
}


Solution 2 : Take each sentence from console and print the output once

import java.util.Scanner;
public class CBIPin2
{
public static void main(String[] args)
{
Scanner s = new Scanner(System.in);
String[] str = new String[4];
int sum=0;
for (int i = 0; i < str.length; i++)
{
str[i]=s.nextLine();
}
for(int i=0; i<str.length;i++)
{
String[] str2=str[i].split("\\s");
if(str[i].equals(""))
{
System.out.print("0");
}
else
{
for(String w:str2)
{
sum=sum+1;
}
System.out.print(sum);
sum=0;
}
}

}
}

As per the requirement i have restricted the sentence word count
to less than 10 at split() method . Check the codes and let me know.

Solution 1: All elements take at a time from console


import java.util.Scanner;
public class CBIPin {
public static void main(String[] args)
{
Scanner sc=new Scanner(System.in);
String[] s=new String[4];
int sum=0;
for(int i=0;i<s.length;i++)
{
String st=sc.nextLine();
String[] str=st.split("\\s",9);
if(st.equals(""))
{
System.out.print("0");
}
else
{
for(String w:str)
{
sum=sum+1;
}
System.out.print(sum);
sum=0;
}
}
}
}


Solution 2 : Take each element from console and print the output once

import java.util.Scanner;
public class CBIPin2
{
public static void main(String[] args)
{
Scanner s = new Scanner(System.in);
String[] str = new String[4];
int sum=0;
for (int i = 0; i < str.length; i++)
{
str[i]=s.nextLine();
}
for(int i=0; i<str.length;i++)
{
String[] str2=str[i].split("\\s", 9);
if(str[i].equals(""))
{
System.out.print("0");
}
else
{
for(String w:str2)
{
sum=sum+1;
}
System.out.print(sum);
sum=0;
}
}

}
}

import java.util.Scanner;

class Jaihind
{
public static void main(String [] args){
Scanner sc=new Scanner(System.in);
String str;
String a[];
int ans[]=new int[4];
String b[]=new String[4];
int i=0;
while(sc.hasNextLine()){
str=sc.nextLine();
a=str.split(" ");
ans[i]=a.length;
i++;

}

for(int k=0;k<4;k++){
System.out.print(ans[k]);
}
}

}