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scienthoon edited this page Jan 26, 2019 · 1 revision 
package yh20190126;

public class test3 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
int radius = 5;
double PI = 3.14;
double result = radius*2*PI;
System.out.println(result);
	}

}

package lecture20190112;

public class Lecture4 {

public static void main(String[] args) {
	// TODO Auto-generated method stub
	//형변환실습
	double d_num = 10.101010;
	System.out.print(d_num);
	System.out.print((int)d_num);
	
	char a='a';
	
	System.out.println((int)a);
	// 변수 -> 변하는수
	//상수 안변하는수
	
	int no1=10;
	no1 =20;
	
	final double pi = 3.14;
	pi = 3.15
}

}

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