Think in Java(十):字符串
2015-02-09 23:02
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1. String对象是不可变的,使用下面的方式会产生一大堆需要垃圾回收的中间对象
String s = "";
for(int i = 0; i < 10; i++){
s += "i";
}
2. StringBuffer是线程安全的,效率比StringBuilder较低
String s = "";
for(int i = 0; i < 10; i++){
s += "i";
}
2. StringBuffer是线程安全的,效率比StringBuilder较低
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