Boolean Value

[shana07]

Good day all! I have one more question and needed some inputs
from you guys.

This is regarding condition value (T/F). My program (Driver) prints out condition values in reversed way - which means it supposed to print out 'false' but it's giving 'true' value and vice versa.
Please refer my Driver class (excerpt):

java.util.List ifs = new java.util.ArrayList();
 
Instruction insn = jvm.getLastInstruction();     
 ……… 
 ………
   if (insn instanceof IfInstruction) 
{
     IfInstruction iff = (IfInstruction) insn;
     Object position = insn.getOffset();
     boolean value = iff.getConditionValue();   //THE PROBLEM IS HERE ***
     ifs.add(new Entry(position, value));
     System.out.print(value);
     System.out.println();                                
}

Here is the IfInstruction class where I need to get value (T/F) when it encounters IF* statements:

 
int target; /** jump offset */
boolean conditionValue;  /** value of last evaluation of branch condition */
/**
   * return which branch was taken. Only useful after instruction got executed
   */
public boolean getConditionValue() 
  {
     return conditionValue;       
  }

So my idea is I have to consider reversing the condition so that true actually points to true and false points to false. What do you think? Please advise….many thanks

Shana

[r035198x]

Good day all! I have one more question and needed some inputs
from you guys.

This is regarding condition value (T/F). My program (Driver) prints out condition values in reversed way - which means it supposed to print out 'false' but it's giving 'true' value and vice versa.
Please refer my Driver class (excerpt):

java.util.List ifs = new java.util.ArrayList();
 
Instruction insn = jvm.getLastInstruction(); 
……… 
………
if (insn instanceof IfInstruction) 
{
IfInstruction iff = (IfInstruction) insn;
Object position = insn.getOffset();
boolean value = iff.getConditionValue(); //THE PROBLEM IS HERE ***
ifs.add(new Entry(position, value));
System.out.print(value);
System.out.println(); 
}

Here is the IfInstruction class where I need to get value (T/F) when it encounters IF* statements:

 
int target; /** jump offset */
boolean conditionValue; /** value of last evaluation of branch condition */
/**
* return which branch was taken. Only useful after instruction got executed
*/
public boolean getConditionValue() 
{
return conditionValue; 
}

So my idea is I have to consider reversing the condition so that true actually points to true and false points to false. What do you think? Please advise….many thanks

Shana

You can reverse the value of a boolean expression using the ! operator.

[shana07]

Just this!

value = ! value;

phew! why I couldn't think about it :)
Thank u mode.
Shana

[r035198x]

Just this!

value = ! value;

phew! why I couldn\'t think about it [img][/img]

Thank u mode.

Shana

Please, PLEASE do not call me mode.

[shana07]

Please, PLEASE do not call me mode.

So sorry. won't use the name next time.
again thanks.
Shana

[r035198x]

So sorry. won\'t use the name next time.

again thanks.

Shana

Some have even started calling me r0 (can you imagine).