while to for loop converter

## input

void main(){
printf("hello world");
int i=0;
while(i<5){
	printf("Hello");
	printf("World");
	i++;
}
printf("loop done");


## WhileConverter.java

import java.io.*;

public class WhileConverter {
	
	String init="";
	String condititon="";
	String update="";
	String prevCode="";
	String loopCode="";
	String latterCode="";
	
	public void converter(BufferedReader br,String cur) {
		int index=6;
		String prev="",newLine="";
		while(cur.charAt(index)!= ')'){
			condititon=condititon+cur.charAt(index);
			index++;
		}
		
		try{
			while(!newLine.equals("}")){
				loopCode=loopCode+"\n"+prev;
				prev=newLine;
				newLine=br.readLine();
			}
		}catch(Exception e){
			System.out.println(e);
		}
		
		update=prev.split(";")[0];
		
		try{
			while(newLine != null){
				newLine=br.readLine();
					latterCode=latterCode+"\n"+newLine;
			}
			
		}catch(Exception e){
			System.out.println(e);
		}
	}
	
	void Printer(BufferedWriter bw){
		try{
			bw.write(prevCode.trim()+"\n");
			
			bw.write("for("+init+condititon+";"+update+")");
			
			bw.write("{\n"+"\t"+loopCode.trim()+"\n}\n");
			
			latterCode=latterCode.split("null")[0];
			bw.write(latterCode.trim());
		}catch(Exception e){
			System.out.println(e);
		}
	}
	
	public static void main(String[] args) {
		WhileConverter obj = new WhileConverter();
		try{
			FileReader fr = new FileReader("input");
			BufferedReader br = new BufferedReader(fr);
			FileWriter fw = new FileWriter("output");
			BufferedWriter bw = new BufferedWriter(fw);
			
			String cur="",prev="";
			
			while(cur != null){
				obj.prevCode=obj.prevCode+"\n"+prev;
				prev = cur;
				cur = br.readLine();
				
				if(cur.contains("while")){
					obj.init=prev;
					obj.converter(br,cur);
					obj.Printer(bw);
					break;
				}
			}
			
			br.close();
			bw.close();
			}catch(Exception e){
				System.out.println(e);
			}
	}
}



## output

void main(){
printf("hello world");
for(int i=0;i<5;	i++){
	printf("Hello");
	printf("World");
}
printf("loop done");