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import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertSame;
import org.junit.Test;
/**
* @author Heis
*
*/
public class StringTest{
@Test
public void testTheSameReference1(){
String str1="abc";
String str2="abc";
String str3="ab"+"c";
String str4=new String(str2);
//str1ºÍstr2ÒýÓÃ×Ô³£Á¿³ØÀïµÄͬһ¸östring¶ÔÏó
assertSame(str1,str2);
//str3ͨ¹ý±àÒëÓÅ»¯£¬Óëstr1ÒýÓÃ×Ôͬһ¸ö¶ÔÏó
assertSame(str1,str3);
//str4ÒòΪÊÇÔÚ¶ÑÖÐÖØÐ·ÖÅäµÄÁíÒ»¸ö¶ÔÏó£¬ËùÒÔËüµÄÒýÓÃÓëstr1²»Í¬
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*/
public class T {
public static void main(String[] args) {
Integer i1 = 128;
Integer i2 = 128;
int i3 = 128;
int i4 = 128;
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