input.java

java实现的一个pascal编译器

package uk.co.brainycreatures.jpascal.lang;

import java.io.*;
public class Input {
  private DataInputStream in;

  public Input() {
    try {
      in = new DataInputStream(java.lang.System.in);
    }
    catch (Exception e) {}
  }

  public synchronized int readInt() {
    int value = 0;
    try {
      value = in.readInt();
    }
    catch(Exception e){}
    return value;
  }

  public synchronized boolean readBoolean() {
    boolean value = false;
    try {
      value = in.readBoolean();
    }
    catch(Exception e){}
    return value;
  }

  public synchronized char readChar() {
    char value = '\0';
    try {
      value = in.readChar();
    }
    catch(Exception e){}
    return value;
  }

  public synchronized double readDouble() {
    double value = 0;
    try {
      value = in.readDouble();
    }
    catch(Exception e){}
    return value;
  }

  public synchronized String readString() {
    String value = "";
    try {
      value = (new BufferedReader(new InputStreamReader(java.lang.System.in))).readLine();
    }
    catch(Exception e) {}
    return value;
  }

  public synchronized void readln() {
    try {
       java.lang.System.in.read();
    }
    catch(Exception e) {}
  }
}