Java 8 coding challenge: Life, the Universe, and Everything

Your program is to use the brute-force approach in order to find the Answer to Life, the Universe, and Everything. More precisely… rewrite small numbers from input to output. Stop processing input after reading in the number 42. All numbers at input are integers of one or two digits.

SAMPLE INPUT
1
2
88
42
99
SAMPLE OUTPUT
1
2
88

Code:

import java.util.*;
import java.io.*;
import java.math.BigInteger;
 
public class Tester
{
 public static long mod=(long)(1e9+7);
 public static long xx,yy,d;
 static int minPrime[];
 static boolean isPrime[];
 
 public static void main(String[] args) throws IOException 
 {
 InputReader s=new InputReader(System.in);
 OutputStream outputStream = System.out;
 PrintWriter out=new PrintWriter(outputStream);
 
 while(true)
 {
 int n=s.nextInt();
 if(n==42)
 break;
 else
 out.println(n);
 }
 
 
 out.close();
 } 
 
 static void modifiedSieve(int n)
 {
 minPrime = new int[n+1];
 
 for(int i=2; i<=Math.sqrt(n); i++)
 {
 if(minPrime[i] == 0)
 {
 for(int j=i*i; j<=n; j=j+i)
 {
 if(minPrime[j] == 0)
 minPrime[j] = i;
 }
 }
 }
 
 for(int i=2; i<=n; i++)
 {
 if(minPrime[i] == 0)
 minPrime[i] = i;
 }
 
 }
 
 static void Sieve(int n)
 {
 isPrime = new boolean[n+1];
 Arrays.fill(isPrime, true);
 
 isPrime[0]=false;
 isPrime[1]=false;
 
 for(int i=2; i<=Math.sqrt(n); i++)
 {
 if(isPrime[i])
 {
 for(int j=i*i; j<=n; j=j+i)
 isPrime[j]=false;
 }
 }
 
 }
 
 static void extendedEuclid(long A, long B)
 {
 if(B == 0) {
 d = A;
 xx = 1;
 yy = 0;
 }
 else {
 extendedEuclid(B, A%B);
 long temp = xx;
 xx = yy;
 yy = temp - (A/B)*yy;
 }
 }
 
 static long gcd(long a,long b)
 {
 if(b==0)
 return a;
 
 return gcd(b,a%b);
 }
 
 static long modulo(long x,long y,long p) 
 {
 long res = 1;
 x = x % p; 
 
 while (y > 0)
 {
 if (y%2==1)
 res = (res*x) % p;
 
 y = y>>1;
 x = (x*x) % p; 
 }
 return res;
 }
 
 public static void debug(Object... o)
 {
 System.out.println(Arrays.deepToString(o));
 }
 
 static long exp(long a, long b)
 {
 if(b==0)
 return 1;
 if(b==1)
 return a;
 if(b==2)
 return a*a;
 
 if(b%2==0)
 return exp(exp(a,b/2),2);
 else
 return a*exp(exp(a,(b-1)/2),2);
 }
 
 static class Pair implements Comparable<Pair>
 {
 long x,y;
 Pair(long ii, long cc)
 {
 x=ii;
 y=cc;
 }
 
 public int compareTo(Pair o) 
 {
 return Long.compare(this.x, o.x);
 }
 
 public int hashCode() {
 int hu = (int) (x ^ (x >>> 32));
 int hv = (int) (y ^ (y >>> 32));
 return 31 * hu + hv;
 }
 
 public boolean equals(Object o) {
 Pair other = (Pair) o;
 return x == other.x && y == other.y;
 }
 
 public String toString() {
 return "[x=" + x + ", y=" + y + "]";
 }
 
 }
 
 static final class InputReader{
 private final InputStream stream;
 private final byte[] buf=new byte[1024];
 private int curChar;
 private int Chars;
 public InputReader(InputStream stream){this.stream=stream;}
 private int read()throws IOException{
 if(curChar>=Chars){
 curChar=0;
 Chars=stream.read(buf);
 if(Chars<=0)
 return -1;
 }
 return buf[curChar++];
 }
 public final int nextInt()throws IOException{return (int)nextLong();}
 public final long nextLong()throws IOException{
 int c=read();
 while(isSpaceChar(c)){
 c=read();
 if(c==-1) throw new IOException();
 }
 boolean negative=false;
 if(c=='-'){
 negative=true;
 c=read();
 }
 long res=0;
 do{
 if(c<'0'||c>'9')throw new InputMismatchException();
 res*=10;
 res+=(c-'0');
 c=read();
 }while(!isSpaceChar(c));
 return negative?(-res):(res);
 }
 public final int[] nextIntBrray(int size)throws IOException{
 int[] arr=new int[size];
 for(int i=0;i<size;i++)arr[i]=nextInt();
 return arr;
 }
 public final String nextString()throws IOException{
 int c=read();
 while(isSpaceChar(c))c=read();
 StringBuilder res=new StringBuilder();
 do{
 res.append((char)c);
 c=read();
 }while(!isSpaceChar(c));
 return res.toString();
 }
 public final String nextLine()throws IOException{
 int c=read();
 while(isSpaceChar(c))c=read();
 StringBuilder res=new StringBuilder();
 do{
 res.append((char)c);
 c=read();
 }while(c!='\n'&&c!=-1);
 return res.toString();
 }
 private boolean isSpaceChar(int c)
 {
 return c==' '||c=='\n'||c=='\r'||c=='\t'||c==-1;
 }
 }
 
}

 

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