java常用api模块String类是重中之中,现总结一下其构造方法:
//1,无参
String aa = new String();
//2,用byte[] 数组参数赋值
byte[] b = {67,78,53,78,78,90,33};
String a = new String(b);
System.out.println(a);
//3,用byte[] 数组对象加索引,加长度赋值
String a1 = new String(b,4,2);
System.out.println(a1);
//4,用char[] 数组对象赋值,包括用索引和长度赋值
char[] c = {'你','s','e','e','鬼'};
String c1 = new String(c);
String c2 = new String(c,1,2);
System.out.println(c1+"****"+c2);
//5,用String str 做参数new对象
String d = new String("jksahdfjkshf");
//6,直接赋值
String e = "asdsf";
System.out.println(d+"*****"+e);
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