//author: 吕志远 10.6 2017 import java.util.Scanner; public class L { public static void main(String[] args) { System.out.println("5+5="+5+5); int a=3,b; b=a++; System.out.println("a="+a+",b="+b); short c=3; c=(short) (c+4); System.out.println("c="+c); short d=3; d+=4; System.out.println("d="+d); System.out.println(6&3); System.out.println(6|3); System.out.println(6^3); System.out.println(3<<2); System.out.println(3>>1); int e=0,f; f=e>1?100:200; System.out.println("f="+f); @SuppressWarnings("resource") Scanner input=new Scanner(System.in); int g,h; System.out.println("Enter the g "); g=input.nextInt(); System.out.println("Enter the h "); h=input.nextInt(); h=g>h?g:h; System.out.println("The larger of the two numbers is"+h); @SuppressWarnings("resource") Scanner input1=new Scanner(System.in); int x,y,z; System.out.println("Enter the x "); x=input1.nextInt(); System.out.println("Enter the y "); y=input1.nextInt(); System.out.println("Enter the z "); z=input1.nextInt(); y=x>y?x:y; z=y>z?y:z; System.out.println("The largest of the three numbers is"+ z); @SuppressWarnings("resource") Scanner input11=new Scanner(System.in); int month; System.out.println("Enter the month "); month=input11.nextInt(); if(month>=3&&month<=5){ System.out.println("This month is spring"); } else if(month>=6&&month<=8){ System.out.println("This month is summer"); } else if(month>=9&&month<=11){ System.out.println("This month is autumn"); } else if(month==12){ System.out.println("This month is winter"); } else if(month>=1&&month<=2){ System.out.println("This month is winter"); } else{ System.out.println("Error!"); } @SuppressWarnings("resource") Scanner input111=new Scanner(System.in); int month1; System.out.println("Enter the month "); month1=input111.nextInt(); switch (month1) { case 1: case 2: case 12: System.out.println("This month is winter"); break; case 3: case 4: case 5: System.out.println("This month is spring"); break; case 6: case 7: case 8: System.out.println("This month is summer"); break; case 9: case 10: case 11: System.out.println("This month is autumn"); break; default: System.out.println("Error!"); break; } int i=1; do{ System.out.println("i="+i); i++; }while(i<1); int j=1; while(j<1){ System.out.println("j="+j); j++; } for(int k=1;k<3;k++) { System.out.println("k="+k); } int q=1; for(System.out.println("a");q<3;System.out.println("c")) { System.out.println("d"); q++; } } }