This week's book giveaway is in the General Computing forum. We're giving away four copies of Arduino in Action and have Martin Evans, Joshua Noble, and Jordan Hochenbaum on-line! See this thread for details.
I am very new to java I just want to know when I complied a file say javac class1.java (I get the class1.class) java class1 (throw the java.lang.NoClassDefFoundError) what this mean and how to solve this? Thanks~