Viewing javadocs in netbeans with minimal key press

First Way:

• Mouseover any member in the navigator window.
• Press ctrl+F1 when javadocs is shown in a small popup.
• Separate window is opened for javadocs.
• Then while scrolling, appropriate documentations are shown as and when the cursor is in any member.

Second Way:

• Windows --> Others --> Javadoc.
• Separate window is opened for javadocs.
• Then while scrolling, appropriate documentations are shown as and when the cursor is in any member.