No country can border a coastline, especially the East coast of Australia, a shoreline of the Pacific Ocean.
Atlantic
The Pacific Ocean
There are seven Middle Eastern countries with Mediterranean coastline: Egypt, Palestine, Israel, Lebanon, Syria, Turkey, and Cyprus.
The country that lies northern & eastern borders of Thailand is Laos
The UK's North sea coastline is on the Eastern side of the landmass. The Western coastline meets the Atlantic ocean.
India borders the eastern part of Pakistan.
The coastline of the Black Sea makes up most of Romania's southeastern border. The northeastern and central eastern borders are with Moldova and Ukraine.
The only country that borders Alaska is Canada, and it is primarily the eastern border.
Australia is located in the eastern and southern hemispheres.
Jordan
Yes Singapore is part of an island and is located on the coast.
On the eastern side of the country, it shares a border with England and on the western, northern and southern sides of the country it borders the Irish sea