Teacher.java

package masivDuos;

public class Teacher {

	public static void main(String[] args) {
				                  
		String[][]ivanov={{"Ivanov Ivan"},
				          {"Bio-60 hours  ","1,2,3,4,2,4"},
				          {"Geo-65 hours  ","5,4,3,5,4"},
		                  {"Math-120 hours","5,4,3,5,4,5"}};
		
		String[][]sidorov={{"Sidorov Semen"},
				           {"Bio-60 hours  ","1,2,3,4,2,4"},
	                       {"Geo-65 hours  ","5,4,5,5,4"},
                           {"Math-120 hours","5,4,3,5,4,5"}};
		
		String[][]petrov={{"Petrov Petr"},
				          {"Bio-60 hours  ","2,4,2,4"},
                          {"Geo-65 hours  ","5,4,3,5,4"},
                          {"Math-120 hours","5,4,4,5,4,5"}};
		balls(ivanov);
		problemSabject(sidorov);
		excellentSabject(petrov);
		
	}
	static void balls(String[][]name)
	{
		System.out.print("All balls ");
		for(int i=0;i<name.length;i++)
			for(int j=0;j<name[i].length;j++)
				System.out.println(name[i][j]);
		System.out.println("*************");
	}
	static void problemSabject(String [][]name)
	{
		System.out.println("Problem subject for "+name[0][0]);
		
		for(int i=1;i<name.length;i++)
		{ 	    
			for(int k=0;k<name[i][1].length();k+=2)
			{
			   if((name[i][1].substring(k,k+1)).equals("3")||
				  (name[i][1].substring(k,k+1)).equals("2")||
				  (name[i][1].substring(k,k+1)).equals("1"))
			   {
				  System.out.print(name[i][0]+"  "); 
				  System.out.println(name[i][1]);
				  break;
			   }
			}
			
		}
		System.out.println("*************");
	}
	static void excellentSabject(String [][]name)
	{
		boolean flag=true;
		System.out.println("Exelent balls "+name[0][0]);
		
		for(int i=1;i<name.length;i++)
		{ 	    
			for(int k=0;k<name[i][1].length();k+=2)
			{ 
			   if((name[i][1].substring(k,k+1)).equals("3")||
				  (name[i][1].substring(k,k+1)).equals("2")||
				  (name[i][1].substring(k,k+1)).equals("1"))
			   {
			  
			      flag=false;
			      
			   }
			}
			if(flag)
			{
				System.out.print(name[i][0]+"  ");
				System.out.println(name[i][1]);
			}
			flag=true;
		}
		System.out.println("*************");
	}


}
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