Infinite loop in Java
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Java
I'm new to Java I tried to extract employee data from a text file and store it in a collection I use stringtokenizer to get strings from the file, but in the second iteration, the while loop becomes infinite; It does not appear in a while loop My code is:
public class Reader1 { String a; int i = 0; int count = 0; int x = 0; int y = 0; File f = new File( "C:\\Documents and Settings\\kmoorthi\\Desktop\\ak\\sample.txt"); ArrayList<Employee> al = new ArrayList<Employee>(); public void notePad() throws IOException { try { FileReader fis = new FileReader(f); BufferedReader br = new BufferedReader(fis); do { a = br.readLine(); i++; if (i > 1) { if (a != null) { StringTokenizer st = new StringTokenizer(a," "); Employee e = new Employee(); System.out.println("hai1"); while (st.hasMoreTokens()) // here became infinite { count++; if (count == 1) { e.ename = st.nextToken(); al.add(e); } if (count == 2) { e.eno = st.nextToken(); al.add(e); } } } } } while (a != null); br.close(); } catch (FileNotFoundException q) { q.printStackTrace(); } } public void retrieve() { Iterator<Employee> it = al.iterator(); while (it.hasNext()) { Employee fi = (Employee) it.next(); String en = fi.ename; System.out.println(en); } } public static void main(String s[]) throws IOException { Reader1 r = new Reader1(); r.notePad(); r.retrieve(); } }
Please propose a solution
Solution
Try this code
while(st.hasMoreTokens()) { if(count==1) { e.ename=st.nextToken(); count++; } if(count==2) { e.eno=st.nextToken(); count=0; } a1.add(e); }
I think this will solve your problem
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