1 //程序员:zy
2017.10.7 2 import java.util.Scanner; 3 public class L { 4 5 public static void main(String[] args) { 6 System.out.println("5+5="+5+5); 7 8 int a=3,b; 9 b=a++; 10 System.out.println("a="+a+",b="+b); 11 12 short c=3; 13 c=(short) (c+4); 14 System.out.println("c="+c); 15 16 short d=3; 17 d+=4; 18 System.out.println("d="+d); 19 20 System.out.println(6&3); 21 System.out.println(6|3); 22 System.out.println(6^3); 23 System.out.println(3<<2); 24 System.out.println(3>>1); 25 26 int e=0,f; 27 f=e>1?100:200; 28 System.out.println("f="+f); 29 30 @SuppressWarnings("resource") 31 Scanner input=new Scanner(System.in); 32 int g,h; 33 System.out.println("Enter the g "); 34 g=input.nextInt(); 35 System.out.println("Enter the h "); 36 h=input.nextInt(); 37 h=g>h?g:h; 38 System.out.println("The larger of the two numbers is"+h); 39 40 @SuppressWarnings("resource") 41 Scanner input1=new Scanner(System.in); 42 int x,y,z; 43 System.out.println("Enter the x "); 44 x=input1.nextInt(); 45 System.out.println("Enter the y "); 46 y=input1.nextInt(); 47 System.out.println("Enter the z "); 48 z=input1.nextInt(); 49 y=x>y?x:y; 50 z=y>z?y:z; 51 System.out.println("The largest of the three numbers is"+ z); 52 53 @SuppressWarnings("resource") 54 Scanner input11=new Scanner(System.in); 55 int month; 56 System.out.println("Enter the month "); 57 month=input11.nextInt(); 58 if(month>=3&&month<=5){ 59 System.out.println("This month is spring"); 60 } 61 else if(month>=6&&month<=8){ 62 System.out.println("This month is summer"); 63 } 64 else if(month>=9&&month<=11){ 65 System.out.println("This month is autumn"); 66 } 67 else if(month==12){ 68 System.out.println("This month is winter"); 69 } 70 else if(month>=1&&month<=2){ 71 System.out.println("This month is winter"); 72 } 73 else{ 74 System.out.println("Error!"); 75 } 76 77 @SuppressWarnings("resource") 78 Scanner input111=new Scanner(System.in); 79 int month1; 80 System.out.println("Enter the month "); 81 month1=input111.nextInt(); 82 switch (month1) 83 { 84 case 1: case 2: case 12: 85 System.out.println("This month is winter"); 86 break; 87 case 3: case 4: case 5: 88 System.out.println("This month is spring"); 89 break; 90 case 6: case 7: case 8: 91 System.out.println("This month is summer"); 92 break; 93 case 9: case 10: case 11: 94 System.out.println("This month is autumn"); 95 break; 96 default: 97 System.out.println("Error!"); 98 break; 99 } 100 101 int i=1; 102 do{ 103 System.out.println("i="+i); 104 i++; 105 }while(i<1); 106 107 int j=1; 108 while(j<1){ 109 System.out.println("j="+j); 110 j++; 111 } 112 113 for(int k=1;k<3;k++) 114 { 115 System.out.println("k="+k); 116 } 117 118 int q=1; 119 for(System.out.println("a");q<3;System.out.println("c")) 120 { 121 System.out.println("d"); 122 q++; 123 } 124 } 125 }