java 3

(1)
public class OutputData{
public static void main (String args[]){
int x=234;
int y=432;
Systemn.out.println(x+"<"+(2*x));
        Systemn.out.print("我输出结果后不会车");
        Systemn.out.println("我输出结果后自动回车到下一行");
        Systemn.out.println("x+y= "+(x+y));
}
}

(2)
public class E{
public static void main (String args[]){
for(int i=20302;i<=20302;i++){
System.out.println((char)i);
}
}
}


(3)
public class E{
public static void main (String args[]){
System.out.println("byte取值范围:"byte.MIN_VALUE+"至"+byte.MAX_VALUE);
        System.out.println("byte取值范围:"short.MIN_VALUE+"至"+short.MAX_VALUE);
        System.out.println("byte取值范围:"int.MIN_VALUE+"至"+int.MAX_VALUE);
        System.out.println("byte取值范围:"long.MIN_VALUE+"至"+long.MAX_VALUE);
        System.out.println("byte取值范围:"float.MIN_VALUE+"至"+float.MAX_VALUE);
        System.out.println("byte取值范围:"double.MIN_VALUE+"至"+double.MAX_VALUE);
}
}