diff --git a/u06_1/Barrier.java b/u06-1/Barrier.java
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diff --git a/u06_1/BarrierTest.java b/u06-1/BarrierTest.java
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diff --git a/u06_1/Concurrent.java b/u06-1/Concurrent.java
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diff --git a/u06_3/Philosopher.java b/u06-3/Philosopher.java
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diff --git a/u06_3/PhilosophersTest.java b/u06-3/PhilosophersTest.java
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diff --git a/u06_3/Table.java b/u06-3/Table.java
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