【无标题】

publicclass Example2_01
publicstaticvold main(String argsl1)
1/注意下面肉条语句的不同
System.out.printin("He said:\ I'm learning Java.\");
System.out.print("He said:\"I\'m learning Java. \"In");
int a=123,b=456;//下面用3个退格转义字符将 789删除
System.out.print1n(a+”+"+6+*=789”+ 1b1b1b'+(a+b））；
System.out.printin();1/ 只输出一个換行
1/利用制表符控制问距
System.out.printin(“1t 学号计姓名lt年龄lt专业lt 通讯地址”);

mport Java.util.Scanners// 心项与上这系语包
public class Example2_02
public static void main(String args [])
boolean bool;
byte D;
short s;
int 1; long _g;
float t;
double d;
String stri
Scanner reader=new Scanner (System. In) ;
bool=reader. nextBoolean () ;
b=reader .nextByte();
s=reader. nextShort ); i=reader.nextInt);
1g=reader. nextLong(); f=reader.nextFloat);
d=reader.nextDouble () ; str=reader.nextLine;
System. out•printIn(” 输出：")；
System.out.printIn("\tbool="+bool);
System.out.print]n("\tb="+b);

System.out.printin("\ts="+s); system.out.printin("\ti="+1);
System.out.printim("\t2g-"+1g):
System.out.printin("\tf="+f);
System.out.printIn("\tds"+d);
System.out.printin("\tstr="+str);
程序运行结果如图2-3所不。
crue 123 1234
12345678 11223344556677 12.45