The Japanese amphibious forces gathered to strike at Java, and on 27 February 1942, the main Allied naval force, under Doorman, sailed northeast from Surabaya to intercept a convoy of the Eastern Invasion Force approaching from the Makassar Strait.
The Eastern Strike Force, as it was known, consisted of two heavy cruisers (HMS Exeter and USS Houston), three light cruisers (Doorman's flagship HNLMS De Ruyter, HNLMS Java, HMAS Perth), and nine destroyers (HMS Electra, HMS Encounter, HMS Jupiter, HNLMS Kortenaer, HNLMS Witte de With, USS Alden, USS John D. Edwards, USS John D. Ford, and USS Paul Jones).

The Japanese task force protecting the convoy, commanded by Rear-Admiral Takeo Takagi, consisted of two heavy (Nachi and Haguro) and two light cruisers (Naka and Jintsū) and 14 destroyers (Yūdachi, Samidare, Murasame, Harusame, Minegumo, Asagumo, Yukikaze, Tokitsukaze, Amatsukaze, Hatsukaze, Yamakaze, Kawakaze, Sazanami, and Ushio) including the 4th Destroyer Squadron under the command of Rear Admiral Shoji Nishimura.
The Japanese heavy cruisers were much more powerful, armed with ten 8-inch (203 mm) guns each, and superb torpedoes.
By comparison, Exeter was armed only with six 8-inch guns and only six of Houston's nine 8-inch guns remained operable after her aft turret had been knocked out in an earlier air attack.

The Allied force engaged the Japanese in the Java Sea, and the battle raged intermittently from mid-afternoon to midnight as the Allies tried to reach and attack the troop transports of the Java invasion fleet, but they were repulsed by superior firepower.
The Allies had local air superiority during the daylight hours, because Japanese air power could not reach the fleet in the bad weather.
The weather also hindered communications, making cooperation between the many Allied parties involved—in reconnaissance, air cover and fleet headquarters—even worse than it already was.
The Japanese also jammed the radio frequencies.
Exeter was the only ship in the battle equipped with radar, an emerging technology at the time.

The battle consisted of a series of attempts over a seven-hour period by Doorman's Combined Striking Force to reach and attack the invasion convoy; each was rebuffed by the escort force with heavy losses being inflicted on the Allies.

The fleets sighted each other at about 16:00 on 27 February and closed to firing range, opening fire at 16:16.
Both sides exhibited poor gunnery and torpedo skills during this phase of the battle.
Despite her recent refit (with the addition of modern Type 284 gunnery control radar), Exeter's shells did not come close to the Japanese ships, while Houston only managed to achieve a straddle on one of the opposing cruisers.
 The only notable result of the initial gunnery exchange was Exeter being critically damaged by a hit in the boiler room from an 8-inch shell.
The ship then limped away to Surabaya, escorted by Witte de With.

The Japanese launched two huge torpedo salvoes, consisting of 92 torpedoes in all, but scored only one hit, on Kortenaer.
She was struck by a Long Lance, broke in two and sank rapidly after the hit.

Electra—covering Exeter—engaged in a duel with Jintsū and Asagumo, scoring several hits but suffering severe damage to her superstructure.
After a serious fire started on Electra and her remaining turret ran out of ammunition, abandon ship was ordered.
On the Japanese side, only Asagumo was forced to retire because of damage.

The Allied fleet broke off and turned away around 18:00, covered by a smoke screen laid by the four destroyers of U.S Destroyer Division 58 (DesDiv 58).
They also launched a torpedo attack but at too long a range to be effective.
Doorman's force turned south toward the Java coast, then west and north as night fell in an attempt to evade the Japanese escort group and fall on the convoy.
It was at this point the ships of DesDiv 58—their torpedoes expended—left on their own initiative to return to Surabaya.

Shortly after, at 21:25, Jupiter ran onto a mine and was sunk, while about 20 minutes later, the fleet passed where Kortenaer had sun
The Japanese amphibious forces gathered to strike at Java, and on 27 February 1942, the main Allied naval force, under Doorman, sailed northeast from Surabaya to intercept a convoy of the Eastern Invasion Force approaching from the Makassar Strait. The Eastern Strike Force, as it was known, consisted of two heavy cruisers (HMS Exeter and USS Houston), three light cruisers (Doorman's flagship HNLMS De Ruyter, HNLMS Java, HMAS Perth), and nine destroyers (HMS Electra, HMS Encounter, HMS Jupiter, HNLMS Kortenaer, HNLMS Witte de With, USS Alden, USS John D. Edwards, USS John D. Ford, and USS Paul Jones).
The Japanese task force protecting the convoy, commanded by Rear-Admiral Takeo Takagi, consisted of two heavy (Nachi and Haguro) and two light cruisers (Naka and Jintsū) and 14 destroyers (Yūdachi, Samidare, Murasame, Harusame, Minegumo, Asagumo, Yukikaze, Tokitsukaze, Amatsukaze, Hatsukaze, Yamakaze, Kawakaze, Sazanami, and Ushio) including the 4th Destroyer Squadron under the command of Rear Admiral Shoji Nishimura. The Japanese heavy cruisers were much more powerful, armed with ten 8-inch (203 mm) guns each, and superb torpedoes. By comparison, Exeter was armed only with six 8-inch guns and only six of Houston's nine 8-inch guns remained operable after her aft turret had been knocked out in an earlier air attack.
The Allied force engaged the Japanese in the Java Sea, and the battle raged intermittently from mid-afternoon to midnight as the Allies tried to reach and attack the troop transports of the Java invasion fleet, but they were repulsed by superior firepower. The Allies had local air superiority during the daylight hours, because Japanese air power could not reach the fleet in the bad weather. The weather also hindered communications, making cooperation between the many Allied parties involved—in reconnaissance, air cover and fleet headquarters—even worse than it already was. The Japanese also jammed the radio frequencies. Exeter was the only ship in the battle equipped with radar, an emerging technology at the time.
The battle consisted of a series of attempts over a seven-hour period by Doorman's Combined Striking Force to reach and attack the invasion convoy; each was rebuffed by the escort force with heavy losses being inflicted on the Allies.
The fleets sighted each other at about 16:00 on 27 February and closed to firing range, opening fire at 16:16. Both sides exhibited poor gunnery and torpedo skills during this phase of the battle. Despite her recent refit (with the addition of modern Type 284 gunnery control radar), Exeter's shells did not come close to the Japanese ships, while Houston only managed to achieve a straddle on one of the opposing cruisers.  The only notable result of the initial gunnery exchange was Exeter being critically damaged by a hit in the boiler room from an 8-inch shell. The ship then limped away to Surabaya, escorted by Witte de With.
The Japanese launched two huge torpedo salvoes, consisting of 92 torpedoes in all, but scored only one hit, on Kortenaer. She was struck by a Long Lance, broke in two and sank rapidly after the hit.
Electra—covering Exeter—engaged in a duel with Jintsū and Asagumo, scoring several hits but suffering severe damage to her superstructure. After a serious fire started on Electra and her remaining turret ran out of ammunition, abandon ship was ordered. On the Japanese side, only Asagumo was forced to retire because of damage.
The Allied fleet broke off and turned away around 18:00, covered by a smoke screen laid by the four destroyers of U.S Destroyer Division 58 (DesDiv 58). They also launched a torpedo attack but at too long a range to be effective. Doorman's force turned south toward the Java coast, then west and north as night fell in an attempt to evade the Japanese escort group and fall on the convoy. It was at this point the ships of DesDiv 58—their torpedoes expended—left on their own initiative to return to Surabaya.
Shortly after, at 21:25, Jupiter ran onto a mine and was sunk, while about 20 minutes later, the fleet passed where Kortenaer had sun
Battle of the Java Sea