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import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.geom.AffineTransform;
import java.awt.image.AffineTransformOp;
import java.awt.image.BufferedImage;
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package sample1;
 
import java.io.File;
import jp.ne.so_net.ga2.no_ji.jcom.IDispatch;
import jp.ne.so_net.ga2.no_ji.jcom.JComException;
import jp.ne.so_net.ga2.no_ji.jcom.ReleaseManager;
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¡¡¡¡public class MyClass {
¡¡¡¡public static void main(String[] args) {
¡¡¡¡String str1 = "str1";
¡¡¡¡String str2 = "str2";
¡¡¡¡String str3 = "str3";
¡¡¡¡str1.concat(str2);
¡¡¡¡System.out.println(str3.concat(str1));
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