public static void main(String[] args) { 
    // TODO Auto-generated method stub 
    if((23!=23)&&(100/0==0)){ 
      System.out.println("运算没有问题。"); 
    }else{ 
    <span style="white-space:pre">  </span>System.out.println("没有报错"); 
    } 
  } 

Exception in thread "main" java.lang.ArithmeticException: / by zero 

  public static void main(String[] args) { 
    // TODO Auto-generated method stub 
    if((23==23)||(100/0==0)){ 
      System.out.println("运算没有问题。"); 
    }else{ 
   System.out.println("没有报错"); 
    } 
  }