diff --git a/java/libraries/io/examples/I2CCompass/I2CCompass.pde b/java/libraries/io/examples/I2CCompass/I2CCompass.pde
index af518e9ae..c4f9e0cc8 100644
--- a/java/libraries/io/examples/I2CCompass/I2CCompass.pde
+++ b/java/libraries/io/examples/I2CCompass/I2CCompass.pde
@@ -20,18 +20,18 @@ void draw() {
 void setHeadingMode() {
   i2c.beginTransmission(0x21);
   // command byte for writing to EEPROM
-  i2c.write((byte) 0x77);
+  i2c.write(0x77);
   // address of the output data control byte
-  i2c.write((byte) 0x4e);
+  i2c.write(0x4e);
   // give us the plain heading
-  i2c.write((byte) 0x00);
+  i2c.write(0x00);
   i2c.endTransmission();
 }
 
 float getHeading() {
   i2c.beginTransmission(0x21);
   // command byte for reading the data
-  i2c.write((byte) 0x41);
+  i2c.write(0x41);
   byte[] in = i2c.read(2);
   i2c.endTransmission();
   // put bytes together to tenth of degrees
diff --git a/java/libraries/io/examples/I2CDigitalAnalog/I2CDigitalAnalog.pde b/java/libraries/io/examples/I2CDigitalAnalog/I2CDigitalAnalog.pde
index 880fc2e95..66f034f61 100644
--- a/java/libraries/io/examples/I2CDigitalAnalog/I2CDigitalAnalog.pde
+++ b/java/libraries/io/examples/I2CDigitalAnalog/I2CDigitalAnalog.pde
@@ -21,7 +21,7 @@ void setAnalog(float fac) {
   // convert to 12 bit value
   int val = int(4095 * fac);
   i2c.beginTransmission(0x60);
-  i2c.write((byte) (val >> 8));
-  i2c.write((byte) (val & 255));
+  i2c.write(val >> 8);
+  i2c.write(val & 255);
   i2c.endTransmission();
 }
diff --git a/java/libraries/io/examples/I2CDigitalAnalogOOP/MCP4725.pde b/java/libraries/io/examples/I2CDigitalAnalogOOP/MCP4725.pde
index 55d34a213..67c50175f 100644
--- a/java/libraries/io/examples/I2CDigitalAnalogOOP/MCP4725.pde
+++ b/java/libraries/io/examples/I2CDigitalAnalogOOP/MCP4725.pde
@@ -20,8 +20,8 @@ class MCP4725 extends I2C {
     // convert to 12 bit value
     int val = int(4095 * fac);
     beginTransmission(address);
-    write((byte) (val >> 8));
-    write((byte) (val & 255));
+    write(val >> 8);
+    write(val & 255);
     endTransmission();
   }
 }