对于 try 和 finally 至少一个语句块包含 return 语句的情况:
finally 语句块会执行
finally 没有 return,finally 对 return 变量的重新赋值修改无效
try 和 finally 都包含return,return 值会以 finally 语句块 return 值为准
代码
public static void main(String[] args) {
System.out.println(getString());
}
public static String getString() {
String str = "A";
try {
str = "B";
return str;
} finally {
System.out.println("finally change return string to C");
str = "C";
// return str;
}
}
输出
finally change return string to C
B
public static void main(String[] args) {
System.out.println(getString());
}
public static String getString() {
String str = "A";
try {
str = "B";
return str;
} finally {
System.out.println("finally change return string to C");
str = "C";
return str;
}
}
输出
finally change return string to C
C
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原文链接:https://blog.csdn.net/meism5/article/details/89237460