If without else ternary operator
No, you cannot do that. Instead try this:
if(bool1 && bool2) voidFunc1();
As mentioned in the other answers, you can't use a ternary operator to do this.
However, if the need strikes you, you can use Java 8 Optional and lambdas to put this kind of logic into a single statement:
Optional.of(pstmt).ifPresent((p) -> p.close())
Why using ternary operator when you have only one choice?
if (pstmt != null) pstmt.close();
is enough!