70ae7aba9b92001b1480d697f94b239e

来自「java编程思想是一本非常经典的书籍 此源码包涵了书籍的所有源码 书籍源码」· 代码 · 共 26 行

//: com:bruceeckel:tools:debug:Assert.java
// Assertion tool for debugging.
// From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
package com.bruceeckel.tools.debug;

public class Assert {
  private static void perr(String msg) {
    System.err.println(msg);
  }
  public static final void is_true(boolean exp) {
    if(!exp) perr("Assertion failed");
  }
  public static final void is_false(boolean exp) {
    if(exp) perr("Assertion failed");
  }
  public static final void
  is_true(boolean exp, String msg) {
    if(!exp) perr("Assertion failed: " + msg);
  }
  public static final void
  is_false(boolean exp, String msg) {
    if(exp) perr("Assertion failed: " + msg);
  }
} ///:~