14 lines
243 B
Java
14 lines
243 B
Java
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import java.io.*;
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public class Concat{
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public static void main(String[] args){
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String str1="AB";
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String str2="CD";
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String str3="ef";
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String str;
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str= str1.concat(str2).concat(str3.toUpperCase());
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System.out.println(str);
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}
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}
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