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java.lang
Class AssertionError

java.lang.Object
  extended by java.lang.Throwable
      extended by java.lang.Error
          extended by java.lang.AssertionError
All Implemented Interfaces:
Serializable
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Top Examples, Source Code
public AssertionError()
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public AssertionError(boolean detailMessage)
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[133]Use assertions to detect predictable, but undesirable, results
By Anonymous on 2002/12/18 10:30:26  Rate
//This simple example demonstrates how you can use assertions to 
 // detect predictable, but undesirable, results.  
  
  
   
 public class Assert 
  {  
    public static void main ( String [  ]  args )  
     {  
       try 
        {  
          doSomething (  ) ; 
        }  
       catch ( AssertionError error )  
        {  
          error.printStackTrace (  ) ; 
        }  
     }  
    public static int doSomething (  )  
     {  
       int i = 2; 
       assert i != 2 : "i was 2 for some reason"; 
       return i; 
     }  
  }  
 
public AssertionError(char detailMessage)
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[134]Static initializer for any class that requires an assertion
By Anonymous on 2002/12/18 10:33:03  Rate
public class Assert 
  {  
    // You can use this block of code as a static initializer  
    // for any class that requires an assertion. If an assertion  
    // is disabled, the assert statement is never executed and  
    // the exception is thrown; otherwise it executes and the  
    // conditional fails. 
  
  
    static  {  
      boolean assertsEnabled = false; 
      // here's the trick 
      assert assertsEnabled = true; 
      if (  !assertsEnabled  )  
         throw new RuntimeException (  
            "Asserts must be enabled!" ) ; 
     }  
  
  
    public static void main ( String [  ]  args )  
     {  
       try 
        {  
          doSomething (  ) ; 
        }  
       catch ( AssertionError error )  
        {  
          error.printStackTrace (  ) ; 
        }  
     }  
    public static int doSomething (  )  
     {  
       int i = 2; 
       assert i != 2 : "i was 2 for some reason"; 
       return i; 
     }  
  }  
 
public AssertionError(double detailMessage)
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public AssertionError(float detailMessage)
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public AssertionError(int detailMessage)
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public AssertionError(Object detailMessage)
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Throwable.getCause()
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public AssertionError(long detailMessage)
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