Captain Aaron Finch has warned Australia are high on confidence following their series whitewash over Pakistan in the UAE.
The defending champions made a statement in their assignment against India last month, where they won the five-match series 3-2 after losing first two ODIs. That was Australia's first series win in India since 2009.
"We'll go to the World Cup with a lot of confidence now, even after a lot of people wrote us off," said Finch who was declared player of the series for his 451 runs in the series.
"Potentially we had a real focus coming here and that was our last hit-out before the World Cup so we wanted to go into that tournament with a lot of momentum," he said after inflicting a fourth whitewash on Pakistan in a bilateral series.
Winners of 2015 World Cup at home, Australia had gone through a miserable time in limited-overs cricket since the infamous ball-tampering controversy in Cape Town last year.
The scandal resulted in the duo of Steve Smith and David Warner being banned for a year, while Cameron Bancroft was suspended for nine months.
The suspensions of Warner and Smith expired only last week and the duo is expected to be drafted back into the side with World Cup around the corner.
"There will be some unlucky guys," said Finch of squad that could also see the return of fast bowlers Mitchell Starc and Josh Hazlewood who are recovering from injuries sustained earlier.
"Everyone who has an opportunity has played some great cricket. At the end of the day there will be some tough calls, but it’s exciting for Australia at the same time because six month back a lot of people were slamming us.
"A lot of people were writing us off, not in just the one-day cricket but in all forms of the game. It's been really positive last couple of months and we have been building nicely."
Pakistan's head coach Mickey Arthur, who has previously coached South Africa and Australia, said the defending champions were in good shape ahead of the World Cup.
"All the final jigsaw pieces are coming together nicely. Australia look a very, very good side. They will be a threat at the World Cup," said Arthur.
Arthur defended the decision of resting key players including Babar Azam, Fakhar Zaman, Hasan Ali, Shaheen Shah Afridi and Sarfraz Ahmed.
"All we can do is prepare as best we can," he said.