21.11.29 月

• Print a type of Java variable

String name = theVariable.getClass().getSimpleName();

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• if 조건문에서 == 대신 .equals()를 쓰기도 한다.
• String to Integer conversion Example.

int i=Integer.parseInt("200");

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• Primitive Data Types. The eight primitives defined in Java are int, byte, short, long, float, double, boolean, and char – those aren't considered objects and represent raw values.