how to raise exception in java code example

Example 1: raise error java

throw new java.lang.Error("this is very bad");
throw new java.lang.RuntimeException("this is not quite as bad");

Example 2: java how to throw exception

public class ThrowException{
  public static void main(String [] args) throws Exception{ 
    //throws Exception line is needed if not using try-catch block
    throw new Exception("Errmessage");
  }
}

Example 3: java return exception

void testMethod() throws ArithmeticException, ArrayIndexOutOfBoundsException {
    // rest of code
}

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