创建了多少个对象?( )
String s1 = "String";
String s2 = "String";
String s3 = "String";2
3
1
"String"在代码中出现，会被编译成常量池中的字符串，s1,s2,s3都指向该字符串
青云测评
青云测评
创建了多少个对象?( )
String s1 = "String";
String s2 = "String";
String s3 = "String";2
3
1
