JavaѧϰʰÒÅ2 ÓÉString str=¡±abc¡±Òý³öµÄ¹ÊÊÂ
JavaѧϰʰÒÅ2--ÓÉString str=”abc”Òý³öµÄ¹ÊÊ£¨×ÛºÏÁËϱߵÄһЩָµãÒѸüУ¬¸ÐлÔÚϱßÁôÑÔ½»Á÷µÄÅóÓÑ£¬Ð»Ð»ÄãÃǵÄÖ¸µã£¡£© ÊÕ²Ø ´ËÎÄÓÚ2009-11-10±»ÍƼöµ½CSDNÊ×Ò³
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public class StringTest {
public static void main(String[] args) {
String str1 = new String("abc");
String str2 = "abc";
if (str1 == str2) {
System.out.println("str1 == str2");
} else {
System.out.println("str1 != str2");
}
String str3 = "abc";
if (str2 == str3) {
System.out.println("str2 == str3");
} else {
System.out.println("str2 != str3");
}
str1 = str1.intern();
if (str1 == str2) {
System.out.println("str1 == str2");
} else {
System.out.println("str1 != str2");
}
String str4 = new String("abc");
str4 = str4.intern();
if (str1 == str4) {
System.out.println("str1 == str4");
} else {
System.out.println("str1 != str4");
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