task 2 finish

Submissions/devPlayer55221/task1.go

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+

create parser

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+// Token represents a lexical token.
+type Token int
+
+const (
+	// Special tokens
+	ILLEGAL Token = iota
+	EOF
+	WS
+
+	// Literals
+	IDENT // fields, table_name
+
+	// Misc characters
+	ASTERISK // *
+	COMMA    // ,
+
+	// Keywords
+	SELECT
+	FROM
+)
+// Parser represents a parser.
+type Parser struct {
+	s   *Scanner
+	buf struct {
+		tok Token  // last read token
+		lit string // last read literal
+		n   int    // buffer size (max=1)
+	}
+}
+
+// NewParser returns a new instance of Parser.
+func NewParser(r io.Reader) *Parser {
+	return &Parser{s: NewScanner(r)}
+}

fetch an api

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+package main
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+type people struct {
+	Number int `json:"number"`
+}
+
+func main() {
+	text := `{"people": [{"craft": "ISS", "name": "Sergey Rizhikov"}, {"craft": "ISS", "name": "Andrey Borisenko"}, {"craft": "ISS", "name": "Shane Kimbrough"}, {"craft": "ISS", "name": "Oleg Novitskiy"}, {"craft": "ISS", "name": "Thomas Pesquet"}, {"craft": "ISS", "name": "Peggy Whitson"}], "message": "success", "number": 6}`
+	textBytes := []byte(text)
+
+	people1 := people{}
+	err := json.Unmarshal(textBytes, &people1)
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+	fmt.Println(people1.Number)
+}

multi threaded webserver

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+package main
+
+import (
+	"io"
+	"net/http"
+)
+
+func hello(w http.ResponseWriter, r *http.Request) {
+	io.WriteString(w, "Hello world!")
+}
+
+func main() {
+	http.HandleFunc("/", hello)
+	http.ListenAndServe(":8000", nil)
+}

task 2 finish

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+package main
+
+import "fmt"
+
+func main(){
+    var sum int    
+    for i:=1; i<=5; i++ { // assigning 1 to i
+        sum =sum(i) // sum = sum + i
+    }
+    fmt.Print("Sum : ",sum)
+}
+func sum(s int)
+{
+    var sum int
+    sum+=s
+    return sum
+}