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DCONST.javaAPI DocJava SE 5 API4312Fri Aug 26 14:55:18 BST 2005com.sun.org.apache.bcel.internal.generic

DCONST

public class DCONST extends Instruction implements TypedInstruction, ConstantPushInstruction
DCONST - Push 0.0 or 1.0, other values cause an exception 
Stack: ... -> ...,
version
$Id: DCONST.java,v 1.1.1.1 2001/10/29 20:00:09 jvanzyl Exp $
author
M. Dahm

Fields Summary
private double
value
Constructors Summary
DCONST()
Empty constructor needed for the Class.newInstance() statement in Instruction.readInstruction(). Not to be used otherwise.

public DCONST(double f)
    super(com.sun.org.apache.bcel.internal.Constants.DCONST_0, (short)1);

    if(f == 0.0)
      opcode = com.sun.org.apache.bcel.internal.Constants.DCONST_0;
    else if(f == 1.0)
      opcode = com.sun.org.apache.bcel.internal.Constants.DCONST_1;
    else
      throw new ClassGenException("DCONST can be used only for 0.0 and 1.0: " + f);

    value = f;
  
Methods Summary
public voidaccept(com.sun.org.apache.bcel.internal.generic.Visitor v)
Call corresponding visitor method(s). The order is:
Call visitor methods of implemented interfaces first, then
call methods according to the class hierarchy in descending order,
i.e., the most specific visitXXX() call comes last.
param
v Visitor object
    v.visitPushInstruction(this);
    v.visitStackProducer(this);
    v.visitTypedInstruction(this);
    v.visitConstantPushInstruction(this);
    v.visitDCONST(this);
  
public com.sun.org.apache.bcel.internal.generic.TypegetType(com.sun.org.apache.bcel.internal.generic.ConstantPoolGen cp)
return
Type.DOUBLE
    return Type.DOUBLE;
  
public java.lang.NumbergetValue()
 return new Double(value);