Write a method to keep just the blue color. This means to set all the green and red values to zero.

Question

What will be an ideal response?

Answer 1

```
/**
* Method to keep only the blue in a picture
*/
public void keepBlue ( )
{
Pixel [ ] pixelAr ray = this . getPixels ( ) ;
int value = 0 ;
for ( Pixel currPixel : pixelArray )
{
value = currPixel . getGreen ( ) ;
currPixel . setColor (new Color ( 0 , 0 , value ) ) ;
}
}
```
Write a method to keep just the red color.
```
public void keepRed ( )
{
Pixel [ ] pixelAr ray = this . getPixels ( ) ;
int red = 0 ;
for ( Pixel currPixel : pixelArray )
{
red = currPixel. getRed ( ) ;
currPixel . s e tColor (new Color ( red , 0 , 0 ) ) ;
}
}
```
Write a method to keep just the green color.
```
/**
* Method to keep only the green in a picture
*/
public void keepGreen ( )
f
Pixel [ ] pixelArray = this . getPixels ( ) ;
int value = 0 ;
for ( Pixel currPixel : pixelArray )
f
value = currPixel . getGreen ( ) ;
currPixel . setColor (new Color ( 0 , value , 0 ) ) ;
}
}
```