Phase 1 Language Basics + Advanced _1-3-Java language senior _1- common API_1_ Section 5 String class _3_ string constant pool

Character change can be shared, then how to use it to share

three ways to create a string. Is then compared three separate





address and not the same 1,2 3
in stack inside a space called a string constant pool, from jdk1.7 start. String constant pool in the heap

objects string constant pool, in fact, is the preservation of the value of byte address of the byte array of


string 2 is also equal to abc, the constant pool has existed abc, so it will not again in the reconstruction. It will create a good address before reuse.
str1 str2 are reused and the same string



third string

char array is converted into a byte array